1025155115 has 12 divisors (see below), whose sum is σ = 1264341456. Its totient is φ = 797953248.

The previous prime is 1025155069. The next prime is 1025155129. The reversal of 1025155115 is 5115515201.

It is not a de Polignac number, because 1025155115 - 2²⁸ = 756719659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68039 + ... + 81728.

It is an arithmetic number, because the mean of its divisors is an integer number (105361788).

Almost surely, 2^1025155115 is an apocalyptic number.

1025155115 is a deficient number, since it is larger than the sum of its proper divisors (239186341).

1025155115 is an equidigital number, since it uses as much as digits as its factorization.

1025155115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149846 (or 149809 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 26.

The square root of 1025155115 is about 32018.0435848289. The cubic root of 1025155115 is about 1008.3156958568.

The spelling of 1025155115 in words is "one billion, twenty-five million, one hundred fifty-five thousand, one hundred fifteen".