139348920 has 32 divisors (see below), whose sum is σ = 418047120. Its totient is φ = 37159680.

The previous prime is 139348901. The next prime is 139348921. The reversal of 139348920 is 29843931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139348921) 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, 580501 + ... + 580740.

Almost surely, 2^139348920 is an apocalyptic number.

139348920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139348920 is an abundant number, since it is smaller than the sum of its proper divisors (278698200).

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

139348920 is a wasteful number, since it uses less digits than its factorization.

139348920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161255 (or 1161251 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 139348920 is about 11804.6143520235. The cubic root of 139348920 is about 518.4432236574.

The spelling of 139348920 in words is "one hundred thirty-nine million, three hundred forty-eight thousand, nine hundred twenty".