1231372 has 6 divisors (see below), whose sum is σ = 2154908. Its totient is φ = 615684.

The previous prime is 1231357. The next prime is 1231379. The reversal of 1231372 is 2731321.

It is not an unprimeable number, because it can be changed into a prime (1231379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153918 + ... + 153925.

2^1231372 is an apocalyptic number.

It is an amenable number.

1231372 is a deficient number, since it is larger than the sum of its proper divisors (923536).

1231372 is a wasteful number, since it uses less digits than its factorization.

1231372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307847 (or 307845 counting only the distinct ones).

The product of its digits is 252, while the sum is 19.

The square root of 1231372 is about 1109.6720236178. The cubic root of 1231372 is about 107.1839500364.

Adding to 1231372 its reverse (2731321), we get a palindrome (3962693).

The spelling of 1231372 in words is "one million, two hundred thirty-one thousand, three hundred seventy-two".