139253754 has 16 divisors (see below), whose sum is σ = 279085248. Its totient is φ = 46321632.

The previous prime is 139253743. The next prime is 139253771. The reversal of 139253754 is 457352931.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20907 + ... + 26750.

It is an arithmetic number, because the mean of its divisors is an integer number (17442828).

Almost surely, 2^139253754 is an apocalyptic number.

139253754 is an abundant number, since it is smaller than the sum of its proper divisors (139831494).

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

139253754 is a wasteful number, since it uses less digits than its factorization.

139253754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48149.

The product of its digits is 113400, while the sum is 39.

The square root of 139253754 is about 11800.5827822189. The cubic root of 139253754 is about 518.3251760887.

The spelling of 139253754 in words is "one hundred thirty-nine million, two hundred fifty-three thousand, seven hundred fifty-four".