139010644 has 12 divisors (see below), whose sum is σ = 245185024. Its totient is φ = 68957784.

The previous prime is 139010617. The next prime is 139010681. The reversal of 139010644 is 446010931.

It is a congruent number.

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, 136314 + ... + 137329.

Almost surely, 2^139010644 is an apocalyptic number.

It is an amenable number.

139010644 is a deficient number, since it is larger than the sum of its proper divisors (106174380).

139010644 is a wasteful number, since it uses less digits than its factorization.

139010644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273774 (or 273772 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 139010644 is about 11790.2775200586. The cubic root of 139010644 is about 518.0233687027.

The spelling of 139010644 in words is "one hundred thirty-nine million, ten thousand, six hundred forty-four".