1372231 has 4 divisors (see below), whose sum is σ = 1568272. Its totient is φ = 1176192.

The previous prime is 1372211. The next prime is 1372243. The reversal of 1372231 is 1322731.

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 1372231 - 2⁷ = 1372103 is a prime.

It is a super-2 number, since 2×1372231² = 3766035834722, 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 = 1372199 and 1372208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372211) 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, 98010 + ... + 98023.

It is an arithmetic number, because the mean of its divisors is an integer number (392068).

2^1372231 is an apocalyptic number.

1372231 is a deficient number, since it is larger than the sum of its proper divisors (196041).

1372231 is an equidigital number, since it uses as much as digits as its factorization.

1372231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196040.

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

The square root of 1372231 is about 1171.4226393578. The cubic root of 1372231 is about 111.1243095062.

Adding to 1372231 its reverse (1322731), we get a palindrome (2694962).

The spelling of 1372231 in words is "one million, three hundred seventy-two thousand, two hundred thirty-one".