115139950 has 12 divisors (see below), whose sum is σ = 214160400. Its totient is φ = 46055960.

The previous prime is 115139911. The next prime is 115139953. The reversal of 115139950 is 59931511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115139953) 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 5 ways as a sum of consecutive naturals, for example, 1151350 + ... + 1151449.

It is an arithmetic number, because the mean of its divisors is an integer number (17846700).

Almost surely, 2^115139950 is an apocalyptic number.

115139950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115139950 is a deficient number, since it is larger than the sum of its proper divisors (99020450).

115139950 is a wasteful number, since it uses less digits than its factorization.

115139950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302811 (or 2302806 counting only the distinct ones).

The product of its (nonzero) digits is 6075, while the sum is 34.

The square root of 115139950 is about 10730.3285131444. The cubic root of 115139950 is about 486.4915995278.

The spelling of 115139950 in words is "one hundred fifteen million, one hundred thirty-nine thousand, nine hundred fifty".