1392623131 has 8 divisors (see below), whose sum is σ = 1443387440. Its totient is φ = 1342549728.

The previous prime is 1392623129. The next prime is 1392623143. The reversal of 1392623131 is 1313262931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1392623131 - 2¹ = 1392623129 is a prime.

It is a super-2 number, since 2×1392623131² = 3878798369992486322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1392623093 and 1392623102.

It is not an unprimeable number, because it can be changed into a prime (1392623171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168621 + ... + 176686.

It is an arithmetic number, because the mean of its divisors is an integer number (180423430).

Almost surely, 2^1392623131 is an apocalyptic number.

1392623131 is a deficient number, since it is larger than the sum of its proper divisors (50764309).

1392623131 is a wasteful number, since it uses less digits than its factorization.

1392623131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345453.

The product of its digits is 5832, while the sum is 31.

The square root of 1392623131 is about 37317.8661099479. The cubic root of 1392623131 is about 1116.7206185363.

The spelling of 1392623131 in words is "one billion, three hundred ninety-two million, six hundred twenty-three thousand, one hundred thirty-one".