139503124 has 6 divisors (see below), whose sum is σ = 244130474. Its totient is φ = 69751560.

The previous prime is 139503109. The next prime is 139503181. The reversal of 139503124 is 421305931.

It can be written as a sum of positive squares in only one way, i.e., 128414224 + 11088900 = 11332^2 + 3330^2 .

It is a super-2 number, since 2×139503124² = 38922243211518752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139503092 and 139503101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17437887 + ... + 17437894.

Almost surely, 2^139503124 is an apocalyptic number.

It is an amenable number.

139503124 is a deficient number, since it is larger than the sum of its proper divisors (104627350).

139503124 is a wasteful number, since it uses less digits than its factorization.

139503124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34875785 (or 34875783 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 139503124 is about 11811.1440597429. The cubic root of 139503124 is about 518.6343901850.

The spelling of 139503124 in words is "one hundred thirty-nine million, five hundred three thousand, one hundred twenty-four".