139018124 has 24 divisors (see below), whose sum is σ = 279084960. Its totient is φ = 59354496.

The previous prime is 139018123. The next prime is 139018127. The reversal of 139018124 is 421810931.

It is not an unprimeable number, because it can be changed into a prime (139018123) 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, 1697 + ... + 16760.

It is an arithmetic number, because the mean of its divisors is an integer number (11628540).

Almost surely, 2^139018124 is an apocalyptic number.

139018124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139018124 is an abundant number, since it is smaller than the sum of its proper divisors (140066836).

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

139018124 is a wasteful number, since it uses less digits than its factorization.

139018124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18737 (or 18735 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 139018124 is about 11790.5947263062. The cubic root of 139018124 is about 518.0326599464.

The spelling of 139018124 in words is "one hundred thirty-nine million, eighteen thousand, one hundred twenty-four".