139017790 has 16 divisors (see below), whose sum is σ = 250419600. Its totient is φ = 55565440.

The previous prime is 139017763. The next prime is 139017797. The reversal of 139017790 is 97710931.

139017790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139017797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11286 + ... + 20134.

It is an arithmetic number, because the mean of its divisors is an integer number (15651225).

Almost surely, 2^139017790 is an apocalyptic number.

139017790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139017790 is a deficient number, since it is larger than the sum of its proper divisors (111401810).

139017790 is a wasteful number, since it uses less digits than its factorization.

139017790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10427.

The product of its (nonzero) digits is 11907, while the sum is 37.

The square root of 139017790 is about 11790.5805624660. The cubic root of 139017790 is about 518.0322450771.

The spelling of 139017790 in words is "one hundred thirty-nine million, seventeen thousand, seven hundred ninety".