115158501 has 24 divisors (see below), whose sum is σ = 170501760. Its totient is φ = 74872896.

The previous prime is 115158499. The next prime is 115158503. The reversal of 115158501 is 105851511.

115158501 is a `hidden beast` number, since 1 + 1 + 5 + 158 + 501 = 666.

It is an interprime number because it is at equal distance from previous prime (115158499) and next prime (115158503).

It is not a de Polignac number, because 115158501 - 2¹ = 115158499 is a prime.

It is a super-2 number, since 2×115158501² = 26522960705134002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115158503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71956 + ... + 73538.

It is an arithmetic number, because the mean of its divisors is an integer number (7104240).

Almost surely, 2^115158501 is an apocalyptic number.

It is an amenable number.

115158501 is a deficient number, since it is larger than the sum of its proper divisors (55343259).

115158501 is a wasteful number, since it uses less digits than its factorization.

115158501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 27.

The square root of 115158501 is about 10731.1928973437. The cubic root of 115158501 is about 486.5177254757.

The spelling of 115158501 in words is "one hundred fifteen million, one hundred fifty-eight thousand, five hundred one".