139372254 has 24 divisors (see below), whose sum is σ = 345112560. Its totient is φ = 39820608.

The previous prime is 139372253. The next prime is 139372267. The reversal of 139372254 is 452273931.

139372254 is a `hidden beast` number, since 1 + 39 + 372 + 254 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139372253) 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, 552939 + ... + 553190.

It is an arithmetic number, because the mean of its divisors is an integer number (14379690).

Almost surely, 2^139372254 is an apocalyptic number.

139372254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

139372254 is an abundant number, since it is smaller than the sum of its proper divisors (205740306).

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

139372254 is a wasteful number, since it uses less digits than its factorization.

139372254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106144 (or 1106141 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 139372254 is about 11805.6026529779. The cubic root of 139372254 is about 518.4721598439.

The spelling of 139372254 in words is "one hundred thirty-nine million, three hundred seventy-two thousand, two hundred fifty-four".