1391432124 has 12 divisors (see below), whose sum is σ = 3246674984. Its totient is φ = 463810704.

The previous prime is 1391432087. The next prime is 1391432131. The reversal of 1391432124 is 4212341931.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1391432091 and 1391432100.

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, 57976327 + ... + 57976350.

Almost surely, 2^1391432124 is an apocalyptic number.

It is an amenable number.

1391432124 is an abundant number, since it is smaller than the sum of its proper divisors (1855242860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1391432124 is a wasteful number, since it uses less digits than its factorization.

1391432124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115952684 (or 115952682 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 1391432124 is about 37301.9050988016. The cubic root of 1391432124 is about 1116.4021783734.

The spelling of 1391432124 in words is "one billion, three hundred ninety-one million, four hundred thirty-two thousand, one hundred twenty-four".