1376231 has 2 divisors, whose sum is σ = 1376232. Its totient is φ = 1376230.

The previous prime is 1376213. The next prime is 1376237. The reversal of 1376231 is 1326731.

It is a happy number.

Together with previous prime (1376213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1376231 is a prime.

It is a super-2 number, since 2×1376231² = 3788023530722, 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 = 1376197 and 1376206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1376237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688115 + 688116.

It is an arithmetic number, because the mean of its divisors is an integer number (688116).

2^1376231 is an apocalyptic number.

1376231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376231 is an equidigital number, since it uses as much as digits as its factorization.

1376231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 23.

The square root of 1376231 is about 1173.1287226899. The cubic root of 1376231 is about 111.2321791090.

The spelling of 1376231 in words is "one million, three hundred seventy-six thousand, two hundred thirty-one".