139279254 has 8 divisors (see below), whose sum is σ = 278558520. Its totient is φ = 46426416.

The previous prime is 139279247. The next prime is 139279289. The reversal of 139279254 is 452972931.

139279254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

139279254 is an admirable number.

It is a Curzon number.

It is a congruent number.

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, 11606599 + ... + 11606610.

It is an arithmetic number, because the mean of its divisors is an integer number (34819815).

Almost surely, 2^139279254 is an apocalyptic number.

139279254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139279254 is a wasteful number, since it uses less digits than its factorization.

139279254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23213214.

The product of its digits is 136080, while the sum is 42.

The square root of 139279254 is about 11801.6631878731. The cubic root of 139279254 is about 518.3568125435.

The spelling of 139279254 in words is "one hundred thirty-nine million, two hundred seventy-nine thousand, two hundred fifty-four".