139914920 has 16 divisors (see below), whose sum is σ = 314808660. Its totient is φ = 55965952.

The previous prime is 139914889. The next prime is 139914923. The reversal of 139914920 is 29419931.

139914920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 139759684 + 155236 = 11822^2 + 394^2 .

It is not an unprimeable number, because it can be changed into a prime (139914923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1748897 + ... + 1748976.

Almost surely, 2^139914920 is an apocalyptic number.

139914920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139914920 is an abundant number, since it is smaller than the sum of its proper divisors (174893740).

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

139914920 is a wasteful number, since it uses less digits than its factorization.

139914920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497884 (or 3497880 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 139914920 is about 11828.5637336069. The cubic root of 139914920 is about 519.1442037756.

The spelling of 139914920 in words is "one hundred thirty-nine million, nine hundred fourteen thousand, nine hundred twenty".