139553379 has 12 divisors (see below), whose sum is σ = 230373936. Its totient is φ = 79744752.

The previous prime is 139553369. The next prime is 139553419. The reversal of 139553379 is 973355931.

It is not a de Polignac number, because 139553379 - 2⁴ = 139553363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139553329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1107504 + ... + 1107629.

It is an arithmetic number, because the mean of its divisors is an integer number (19197828).

Almost surely, 2^139553379 is an apocalyptic number.

139553379 is a deficient number, since it is larger than the sum of its proper divisors (90820557).

139553379 is a wasteful number, since it uses less digits than its factorization.

139553379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215146 (or 2215143 counting only the distinct ones).

The product of its digits is 382725, while the sum is 45.

The square root of 139553379 is about 11813.2713081517. The cubic root of 139553379 is about 518.6966608146.

The spelling of 139553379 in words is "one hundred thirty-nine million, five hundred fifty-three thousand, three hundred seventy-nine".