115242507 has 42 divisors (see below), whose sum is σ = 183881948. Its totient is φ = 72176832.

The previous prime is 115242487. The next prime is 115242509. The reversal of 115242507 is 705242511.

115242507 is a `hidden beast` number, since 1 + 152 + 4 + 2 + 507 = 666.

It is not a de Polignac number, because 115242507 - 2⁸ = 115242251 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115242509) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 210408 + ... + 210954.

Almost surely, 2^115242507 is an apocalyptic number.

115242507 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

115242507 is a deficient number, since it is larger than the sum of its proper divisors (68639441).

115242507 is an frugal number, since it uses more digits than its factorization.

115242507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 115242507 is about 10735.1062873173. The cubic root of 115242507 is about 486.6359986200.

The spelling of 115242507 in words is "one hundred fifteen million, two hundred forty-two thousand, five hundred seven".