139544370 has 80 divisors (see below), whose sum is σ = 428839488. Its totient is φ = 31894560.

The previous prime is 139544357. The next prime is 139544407. The reversal of 139544370 is 73445931.

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 39 ways as a sum of consecutive naturals, for example, 6636 + ... + 17975.

Almost surely, 2^139544370 is an apocalyptic number.

139544370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139544370 is an abundant number, since it is smaller than the sum of its proper divisors (289295118).

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

139544370 is a wasteful number, since it uses less digits than its factorization.

139544370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24637 (or 24628 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 139544370 is about 11812.8899935621. The cubic root of 139544370 is about 518.6854989237.

The spelling of 139544370 in words is "one hundred thirty-nine million, five hundred forty-four thousand, three hundred seventy".