1295816141 has 4 divisors (see below), whose sum is σ = 1298627484. Its totient is φ = 1293004800.

The previous prime is 1295816099. The next prime is 1295816147. The reversal of 1295816141 is 1416185921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1416185921 = 2383 ⋅594287.

It can be written as a sum of positive squares in 2 ways, for example, as 117267241 + 1178548900 = 10829^2 + 34330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1295816141 is a prime.

It is a super-3 number, since 3×1295816141³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1295816095 and 1295816104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1295816147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404980 + ... + 1405901.

It is an arithmetic number, because the mean of its divisors is an integer number (324656871).

Almost surely, 2^1295816141 is an apocalyptic number.

It is an amenable number.

1295816141 is a deficient number, since it is larger than the sum of its proper divisors (2811343).

1295816141 is an equidigital number, since it uses as much as digits as its factorization.

1295816141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811342.

The product of its digits is 17280, while the sum is 38.

The square root of 1295816141 is about 35997.4463122039. The cubic root of 1295816141 is about 1090.2207955488.

The spelling of 1295816141 in words is "one billion, two hundred ninety-five million, eight hundred sixteen thousand, one hundred forty-one".