139961108 has 12 divisors (see below), whose sum is σ = 279922272. Its totient is φ = 59983320.

The previous prime is 139961099. The next prime is 139961131. The reversal of 139961108 is 801169931.

139961108 is an admirable number.

It is a super-2 number, since 2×139961108² = 39178223505175328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2499278 + ... + 2499333.

It is an arithmetic number, because the mean of its divisors is an integer number (23326856).

Almost surely, 2^139961108 is an apocalyptic number.

It is an amenable number.

139961108 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

139961108 is a wasteful number, since it uses less digits than its factorization.

139961108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4998622 (or 4998620 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 139961108 is about 11830.5159650795. The cubic root of 139961108 is about 519.2013232366.

The spelling of 139961108 in words is "one hundred thirty-nine million, nine hundred sixty-one thousand, one hundred eight".