115515157 has 8 divisors (see below), whose sum is σ = 118727840. Its totient is φ = 112326480.

The previous prime is 115515137. The next prime is 115515173. The reversal of 115515157 is 751515511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115515157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115515137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3982 + ... + 15712.

It is an arithmetic number, because the mean of its divisors is an integer number (14840980).

Almost surely, 2^115515157 is an apocalyptic number.

It is an amenable number.

115515157 is a deficient number, since it is larger than the sum of its proper divisors (3212683).

115515157 is a wasteful number, since it uses less digits than its factorization.

115515157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12003.

The product of its digits is 4375, while the sum is 31.

The square root of 115515157 is about 10747.7977744280. The cubic root of 115515157 is about 487.0194705690.

The spelling of 115515157 in words is "one hundred fifteen million, five hundred fifteen thousand, one hundred fifty-seven".