1265015262 has 24 divisors (see below), whose sum is σ = 2943097416. Its totient is φ = 361432848.

The previous prime is 1265015261. The next prime is 1265015281. The reversal of 1265015262 is 2625105621.

It is a super-2 number, since 2×1265015262² = 3200527226185857288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265015261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2151093 + ... + 2151680.

It is an arithmetic number, because the mean of its divisors is an integer number (122629059).

Almost surely, 2^1265015262 is an apocalyptic number.

1265015262 is an abundant number, since it is smaller than the sum of its proper divisors (1678082154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265015262 is a wasteful number, since it uses less digits than its factorization.

1265015262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302792 (or 4302785 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1265015262 is about 35567.0530407005. The cubic root of 1265015262 is about 1081.5134422979.

The spelling of 1265015262 in words is "one billion, two hundred sixty-five million, fifteen thousand, two hundred sixty-two".