139260684 has 12 divisors (see below), whose sum is σ = 324941624. Its totient is φ = 46420224.

The previous prime is 139260683. The next prime is 139260691. The reversal of 139260684 is 486062931.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (139260683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5802517 + ... + 5802540.

Almost surely, 2^139260684 is an apocalyptic number.

It is an amenable number.

139260684 is an abundant number, since it is smaller than the sum of its proper divisors (185680940).

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

139260684 is a wasteful number, since it uses less digits than its factorization.

139260684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11605064 (or 11605062 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 139260684 is about 11800.8764081317. The cubic root of 139260684 is about 518.3337741427. Note that the first 3 decimals are identical.

The spelling of 139260684 in words is "one hundred thirty-nine million, two hundred sixty thousand, six hundred eighty-four".