1141263965 has 4 divisors (see below), whose sum is σ = 1369516764. Its totient is φ = 913011168.

The previous prime is 1141263961. The next prime is 1141263967. The reversal of 1141263965 is 5693621411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5693621411 = 23 ⋅247548757.

It can be written as a sum of positive squares in 2 ways, for example, as 264452644 + 876811321 = 16262^2 + 29611^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141263965 - 2² = 1141263961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141263961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114126392 + ... + 114126401.

It is an arithmetic number, because the mean of its divisors is an integer number (342379191).

Almost surely, 2^1141263965 is an apocalyptic number.

It is an amenable number.

1141263965 is a deficient number, since it is larger than the sum of its proper divisors (228252799).

1141263965 is an equidigital number, since it uses as much as digits as its factorization.

1141263965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228252798.

The product of its digits is 38880, while the sum is 38.

The square root of 1141263965 is about 33782.5985531013. The cubic root of 1141263965 is about 1045.0298641527.

The spelling of 1141263965 in words is "one billion, one hundred forty-one million, two hundred sixty-three thousand, nine hundred sixty-five".