1260057965 has 4 divisors (see below), whose sum is σ = 1512069564. Its totient is φ = 1008046368.

The previous prime is 1260057949. The next prime is 1260057973. The reversal of 1260057965 is 5697500621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5697500621 = 50047 ⋅113843.

It can be written as a sum of positive squares in 2 ways, for example, as 894368836 + 365689129 = 29906^2 + 19123^2 .

It is a cyclic number.

It is not a de Polignac number, because 1260057965 - 2⁴ = 1260057949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126005792 + ... + 126005801.

It is an arithmetic number, because the mean of its divisors is an integer number (378017391).

Almost surely, 2^1260057965 is an apocalyptic number.

It is an amenable number.

1260057965 is a deficient number, since it is larger than the sum of its proper divisors (252011599).

1260057965 is an equidigital number, since it uses as much as digits as its factorization.

1260057965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252011598.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 1260057965 is about 35497.2951786471. The cubic root of 1260057965 is about 1080.0988606919.

The spelling of 1260057965 in words is "one billion, two hundred sixty million, fifty-seven thousand, nine hundred sixty-five".