139051264 has 81 divisors (see below), whose sum is σ = 309707391. Its totient is φ = 62261760.

The previous prime is 139051249. The next prime is 139051273. The reversal of 139051264 is 462150931.

The square root of 139051264 is 11792.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2075359 + ... + 2075425.

Almost surely, 2^139051264 is an apocalyptic number.

139051264 is the 11792-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139051264

139051264 is an abundant number, since it is smaller than the sum of its proper divisors (170656127).

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

139051264 is an frugal number, since it uses more digits than its factorization.

139051264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The cubic root of 139051264 is about 518.0738206187.

The spelling of 139051264 in words is "one hundred thirty-nine million, fifty-one thousand, two hundred sixty-four".