1237231 has 2 divisors, whose sum is σ = 1237232. Its totient is φ = 1237230.

The previous prime is 1237217. The next prime is 1237253. The reversal of 1237231 is 1327321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1237231 - 2⁵ = 1237199 is a prime.

It is a super-2 number, since 2×1237231² = 3061481094722, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1237199 and 1237208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1237211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 618615 + 618616.

It is an arithmetic number, because the mean of its divisors is an integer number (618616).

2^1237231 is an apocalyptic number.

1237231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1237231 is an equidigital number, since it uses as much as digits as its factorization.

1237231 is an evil number, because the sum of its binary digits is even.

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

The square root of 1237231 is about 1112.3088599845. The cubic root of 1237231 is about 107.3536787001.

It can be divided in two parts, 12372 and 31, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 1237231 in words is "one million, two hundred thirty-seven thousand, two hundred thirty-one".