1265613141 has 8 divisors (see below), whose sum is σ = 1817290720. Its totient is φ = 778838832.

The previous prime is 1265613121. The next prime is 1265613143. The reversal of 1265613141 is 1413165621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1265613141 - 2¹¹ = 1265611093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1265613099 and 1265613108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265613143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16225771 + ... + 16225848.

It is an arithmetic number, because the mean of its divisors is an integer number (227161340).

Almost surely, 2^1265613141 is an apocalyptic number.

It is an amenable number.

1265613141 is a deficient number, since it is larger than the sum of its proper divisors (551677579).

1265613141 is a wasteful number, since it uses less digits than its factorization.

1265613141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32451635.

The product of its digits is 4320, while the sum is 30.

The square root of 1265613141 is about 35575.4570033893. The cubic root of 1265613141 is about 1081.6837992237.

Adding to 1265613141 its reverse (1413165621), we get a palindrome (2678778762).

The spelling of 1265613141 in words is "one billion, two hundred sixty-five million, six hundred thirteen thousand, one hundred forty-one".