139944652 has 12 divisors (see below), whose sum is σ = 257792920. Its totient is φ = 66289536.

The previous prime is 139944647. The next prime is 139944683. The reversal of 139944652 is 256449931.

It is a super-2 number, since 2×139944652² = 39169011246802208, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 139944599 and 139944608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920613 + ... + 920764.

Almost surely, 2^139944652 is an apocalyptic number.

It is an amenable number.

139944652 is a deficient number, since it is larger than the sum of its proper divisors (117848268).

139944652 is a wasteful number, since it uses less digits than its factorization.

139944652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841400 (or 1841398 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 139944652 is about 11829.8204551041. The cubic root of 139944652 is about 519.1809739839.

The spelling of 139944652 in words is "one hundred thirty-nine million, nine hundred forty-four thousand, six hundred fifty-two".