1392031 has 4 divisors (see below), whose sum is σ = 1396192. Its totient is φ = 1387872.

The previous prime is 1392007. The next prime is 1392089. The reversal of 1392031 is 1302931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1392031 - 2⁹ = 1391519 is a prime.

It is a super-2 number, since 2×1392031² = 3875500609922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530 + ... + 2263.

It is an arithmetic number, because the mean of its divisors is an integer number (349048).

2^1392031 is an apocalyptic number.

1392031 is a deficient number, since it is larger than the sum of its proper divisors (4161).

1392031 is an equidigital number, since it uses as much as digits as its factorization.

1392031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1392031 is about 1179.8436337075. The cubic root of 1392031 is about 111.6562322866.

Adding to 1392031 its reverse (1302931), we get a palindrome (2694962).

The spelling of 1392031 in words is "one million, three hundred ninety-two thousand, thirty-one".