15139500 has 48 divisors (see below), whose sum is σ = 44090592. Its totient is φ = 4036800.

The previous prime is 15139493. The next prime is 15139511. The reversal of 15139500 is 593151.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3547 + ... + 6546.

It is an arithmetic number, because the mean of its divisors is an integer number (918554).

Almost surely, 2^15139500 is an apocalyptic number.

15139500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15139500 is an abundant number, since it is smaller than the sum of its proper divisors (28951092).

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

15139500 is a wasteful number, since it uses less digits than its factorization.

15139500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10115 (or 10103 counting only the distinct ones).

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 15139500 is about 3890.9510405555. The cubic root of 15139500 is about 247.3833753160.

The spelling of 15139500 in words is "fifteen million, one hundred thirty-nine thousand, five hundred".