1392875285 has 16 divisors (see below), whose sum is σ = 1745438976. Its totient is φ = 1065047808.

The previous prime is 1392875243. The next prime is 1392875287. The reversal of 1392875285 is 5825782931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1392875285 - 2²² = 1388680981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392875287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181037 + ... + 188573.

It is an arithmetic number, because the mean of its divisors is an integer number (109089936).

Almost surely, 2^1392875285 is an apocalyptic number.

It is an amenable number.

1392875285 is a deficient number, since it is larger than the sum of its proper divisors (352563691).

1392875285 is a wasteful number, since it uses less digits than its factorization.

1392875285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9172.

The product of its digits is 1209600, while the sum is 50.

The square root of 1392875285 is about 37321.2444192313. The cubic root of 1392875285 is about 1116.7880137924.

The spelling of 1392875285 in words is "one billion, three hundred ninety-two million, eight hundred seventy-five thousand, two hundred eighty-five".