139546444 has 12 divisors (see below), whose sum is σ = 244322344. Its totient is φ = 69740064.

The previous prime is 139546439. The next prime is 139546483. The reversal of 139546444 is 444645931.

It is a junction number, because it is equal to n+sod(n) for n = 139546397 and 139546406.

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, 2839 + ... + 16945.

Almost surely, 2^139546444 is an apocalyptic number.

It is an amenable number.

139546444 is a deficient number, since it is larger than the sum of its proper divisors (104775900).

139546444 is a wasteful number, since it uses less digits than its factorization.

139546444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16584 (or 16582 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 139546444 is about 11812.9777786975. The cubic root of 139546444 is about 518.6880685924.

It can be divided in two parts, 1395464 and 44, that multiplied together give a palindrome (61400416).

The spelling of 139546444 in words is "one hundred thirty-nine million, five hundred forty-six thousand, four hundred forty-four".