139654064 has 20 divisors (see below), whose sum is σ = 295178280. Its totient is φ = 63479040.

The previous prime is 139654049. The next prime is 139654069. The reversal of 139654064 is 460456931.

It is not an unprimeable number, because it can be changed into a prime (139654069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396569 + ... + 396920.

It is an arithmetic number, because the mean of its divisors is an integer number (14758914).

Almost surely, 2^139654064 is an apocalyptic number.

It is an amenable number.

139654064 is an abundant number, since it is smaller than the sum of its proper divisors (155524216).

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

139654064 is a wasteful number, since it uses less digits than its factorization.

139654064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793508 (or 793502 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 139654064 is about 11817.5320604600. The cubic root of 139654064 is about 518.8213739506.

The spelling of 139654064 in words is "one hundred thirty-nine million, six hundred fifty-four thousand, sixty-four".