139855038 has 8 divisors (see below), whose sum is σ = 279710088. Its totient is φ = 46618344.

The previous prime is 139855007. The next prime is 139855061. The reversal of 139855038 is 830558931.

It is a sphenic number, since it is the product of 3 distinct primes.

139855038 is an admirable number.

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, 11654581 + ... + 11654592.

It is an arithmetic number, because the mean of its divisors is an integer number (34963761).

Almost surely, 2^139855038 is an apocalyptic number.

139855038 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.

139855038 is a wasteful number, since it uses less digits than its factorization.

139855038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23309178.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 139855038 is about 11826.0322171048. The cubic root of 139855038 is about 519.0701305953.

The spelling of 139855038 in words is "one hundred thirty-nine million, eight hundred fifty-five thousand, thirty-eight".