139345955 has 24 divisors (see below), whose sum is σ = 195043968. Its totient is φ = 95292288.

The previous prime is 139345939. The next prime is 139346017. The reversal of 139345955 is 559543931.

It is not a de Polignac number, because 139345955 - 2⁴ = 139345939 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148247 + ... + 149183.

It is an arithmetic number, because the mean of its divisors is an integer number (8126832).

Almost surely, 2^139345955 is an apocalyptic number.

139345955 is a deficient number, since it is larger than the sum of its proper divisors (55698013).

139345955 is an equidigital number, since it uses as much as digits as its factorization.

139345955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563 (or 1556 counting only the distinct ones).

The product of its digits is 364500, while the sum is 44.

The square root of 139345955 is about 11804.4887648725. The cubic root of 139345955 is about 518.4395465686.

The spelling of 139345955 in words is "one hundred thirty-nine million, three hundred forty-five thousand, nine hundred fifty-five".