139297355 has 16 divisors (see below), whose sum is σ = 170759424. Its totient is φ = 109058400.

The previous prime is 139297309. The next prime is 139297357. The reversal of 139297355 is 553792931.

It is not a de Polignac number, because 139297355 - 2¹⁴ = 139280971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139297357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53330 + ... + 55880.

It is an arithmetic number, because the mean of its divisors is an integer number (10672464).

Almost surely, 2^139297355 is an apocalyptic number.

139297355 is a deficient number, since it is larger than the sum of its proper divisors (31462069).

139297355 is a wasteful number, since it uses less digits than its factorization.

139297355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786.

The product of its digits is 255150, while the sum is 44.

The square root of 139297355 is about 11802.4300463930. The cubic root of 139297355 is about 518.3792671206.

The spelling of 139297355 in words is "one hundred thirty-nine million, two hundred ninety-seven thousand, three hundred fifty-five".