115615151 has 4 divisors (see below), whose sum is σ = 119344704. Its totient is φ = 111885600.

The previous prime is 115615139. The next prime is 115615177. The reversal of 115615151 is 151516511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151516511 = 1049 ⋅144439.

It is a cyclic number.

It is not a de Polignac number, because 115615151 - 2²² = 111420847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115615151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115615651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864730 + ... + 1864791.

It is an arithmetic number, because the mean of its divisors is an integer number (29836176).

Almost surely, 2^115615151 is an apocalyptic number.

115615151 is a deficient number, since it is larger than the sum of its proper divisors (3729553).

115615151 is an equidigital number, since it uses as much as digits as its factorization.

115615151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729552.

The product of its digits is 750, while the sum is 26.

The square root of 115615151 is about 10752.4486048528. The cubic root of 115615151 is about 487.1599571253.

The spelling of 115615151 in words is "one hundred fifteen million, six hundred fifteen thousand, one hundred fifty-one".