115124640 has 48 divisors (see below), whose sum is σ = 362644128. Its totient is φ = 30699776.

The previous prime is 115124609. The next prime is 115124641. The reversal of 115124640 is 46421511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 115124640.

It is not an unprimeable number, because it can be changed into a prime (115124641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119442 + ... + 120401.

It is an arithmetic number, because the mean of its divisors is an integer number (7555086).

Almost surely, 2^115124640 is an apocalyptic number.

115124640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115124640 is an abundant number, since it is smaller than the sum of its proper divisors (247519488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115124640 is a wasteful number, since it uses less digits than its factorization.

115124640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239861 (or 239853 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 115124640 is about 10729.6150909527. The cubic root of 115124640 is about 486.4700358668.

The spelling of 115124640 in words is "one hundred fifteen million, one hundred twenty-four thousand, six hundred forty".