1151025515 has 16 divisors (see below), whose sum is σ = 1442750400. Its totient is φ = 880424832.

The previous prime is 1151025487. The next prime is 1151025541. The reversal of 1151025515 is 5155201511.

It is a cyclic number.

It is not a de Polignac number, because 1151025515 - 2⁸ = 1151025259 is a prime.

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, 23600 + ... + 53469.

It is an arithmetic number, because the mean of its divisors is an integer number (90171900).

Almost surely, 2^1151025515 is an apocalyptic number.

1151025515 is a deficient number, since it is larger than the sum of its proper divisors (291724885).

1151025515 is a wasteful number, since it uses less digits than its factorization.

1151025515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77206.

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

The square root of 1151025515 is about 33926.7669399841. The cubic root of 1151025515 is about 1048.0008871246. Note that the first 3 decimals are identical.

The spelling of 1151025515 in words is "one billion, one hundred fifty-one million, twenty-five thousand, five hundred fifteen".