1265515130 has 32 divisors (see below), whose sum is σ = 2490870528. Its totient is φ = 459102400.

The previous prime is 1265515127. The next prime is 1265515157. The reversal of 1265515130 is 315155621.

It is a junction number, because it is equal to n+sod(n) for n = 1265515093 and 1265515102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34064 + ... + 60756.

It is an arithmetic number, because the mean of its divisors is an integer number (77839704).

Almost surely, 2^1265515130 is an apocalyptic number.

1265515130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1265515130 is a deficient number, since it is larger than the sum of its proper divisors (1225355398).

1265515130 is a wasteful number, since it uses less digits than its factorization.

1265515130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27142.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 1265515130 is about 35574.0794680621. The cubic root of 1265515130 is about 1081.6558760919.

The spelling of 1265515130 in words is "one billion, two hundred sixty-five million, five hundred fifteen thousand, one hundred thirty".