139741399 has 8 divisors (see below), whose sum is σ = 166648320. Its totient is φ = 114570456.

The previous prime is 139741361. The next prime is 139741429. The reversal of 139741399 is 993147931.

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

It is not a de Polignac number, because 139741399 - 2¹⁷ = 139610327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139741799) 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, 433819 + ... + 434140.

It is an arithmetic number, because the mean of its divisors is an integer number (20831040).

Almost surely, 2^139741399 is an apocalyptic number.

139741399 is a deficient number, since it is larger than the sum of its proper divisors (26906921).

139741399 is an equidigital number, since it uses as much as digits as its factorization.

139741399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867989.

The product of its digits is 183708, while the sum is 46.

The square root of 139741399 is about 11821.2266284003. The cubic root of 139741399 is about 518.9295026158.

The spelling of 139741399 in words is "one hundred thirty-nine million, seven hundred forty-one thousand, three hundred ninety-nine".