139925458 has 8 divisors (see below), whose sum is σ = 209938428. Its totient is φ = 69945984.

The previous prime is 139925447. The next prime is 139925479. The reversal of 139925458 is 854529931.

139925458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 139783329 + 142129 = 11823^2 + 377^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11610 + ... + 20362.

Almost surely, 2^139925458 is an apocalyptic number.

139925458 is a deficient number, since it is larger than the sum of its proper divisors (70012970).

139925458 is an equidigital number, since it uses as much as digits as its factorization.

139925458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16748.

The product of its digits is 388800, while the sum is 46.

The square root of 139925458 is about 11829.0091723694. The cubic root of 139925458 is about 519.1572369443.

The spelling of 139925458 in words is "one hundred thirty-nine million, nine hundred twenty-five thousand, four hundred fifty-eight".