139268644 has 12 divisors (see below), whose sum is σ = 243827584. Its totient is φ = 69603624.

The previous prime is 139268639. The next prime is 139268653. The reversal of 139268644 is 446862931.

It is a happy number.

139268644 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

139268644 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 139268644.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4777 + ... + 17359.

Almost surely, 2^139268644 is an apocalyptic number.

It is an amenable number.

139268644 is a deficient number, since it is larger than the sum of its proper divisors (104558940).

139268644 is a wasteful number, since it uses less digits than its factorization.

139268644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15354 (or 15352 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 139268644 is about 11801.2136663989. The cubic root of 139268644 is about 518.3436497661.

The spelling of 139268644 in words is "one hundred thirty-nine million, two hundred sixty-eight thousand, six hundred forty-four".