139706968 has 32 divisors (see below), whose sum is σ = 280740960. Its totient is φ = 65007360.

The previous prime is 139706953. The next prime is 139706971. The reversal of 139706968 is 869607931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3453 + ... + 17068.

It is an arithmetic number, because the mean of its divisors is an integer number (8773155).

Almost surely, 2^139706968 is an apocalyptic number.

It is an amenable number.

139706968 is an abundant number, since it is smaller than the sum of its proper divisors (141033992).

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

139706968 is a wasteful number, since it uses less digits than its factorization.

139706968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20587 (or 20583 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 139706968 is about 11819.7702177327. The cubic root of 139706968 is about 518.8868792904.

The spelling of 139706968 in words is "one hundred thirty-nine million, seven hundred six thousand, nine hundred sixty-eight".