139900308 has 12 divisors (see below), whose sum is σ = 326434080. Its totient is φ = 46633432.

The previous prime is 139900291. The next prime is 139900309. The reversal of 139900308 is 803009931.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139900309) 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 3 ways as a sum of consecutive naturals, for example, 5829168 + ... + 5829191.

It is an arithmetic number, because the mean of its divisors is an integer number (27202840).

Almost surely, 2^139900308 is an apocalyptic number.

It is an amenable number.

139900308 is an abundant number, since it is smaller than the sum of its proper divisors (186533772).

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

139900308 is a wasteful number, since it uses less digits than its factorization.

139900308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11658366 (or 11658364 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 139900308 is about 11827.9460600732. The cubic root of 139900308 is about 519.1261308896.

The spelling of 139900308 in words is "one hundred thirty-nine million, nine hundred thousand, three hundred eight".