139062961 has 8 divisors (see below), whose sum is σ = 141318144. Its totient is φ = 136825200.

The previous prime is 139062953. The next prime is 139062971. The reversal of 139062961 is 169260931.

139062961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139062961 - 2³ = 139062953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139062961.

It is not an unprimeable number, because it can be changed into a prime (139062971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12240 + ... + 20686.

It is an arithmetic number, because the mean of its divisors is an integer number (17664768).

Almost surely, 2^139062961 is an apocalyptic number.

It is an amenable number.

139062961 is a deficient number, since it is larger than the sum of its proper divisors (2255183).

139062961 is a wasteful number, since it uses less digits than its factorization.

139062961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 139062961 is about 11792.4959614155. The cubic root of 139062961 is about 518.0883470109.

The spelling of 139062961 in words is "one hundred thirty-nine million, sixty-two thousand, nine hundred sixty-one".