1373431 has 2 divisors, whose sum is σ = 1373432. Its totient is φ = 1373430.

The previous prime is 1373419. The next prime is 1373441. The reversal of 1373431 is 1343731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1373431 - 2¹³ = 1365239 is a prime.

It is a super-2 number, since 2×1373431² = 3772625423522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1373441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686715 + 686716.

It is an arithmetic number, because the mean of its divisors is an integer number (686716).

2^1373431 is an apocalyptic number.

1373431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373431 is an equidigital number, since it uses as much as digits as its factorization.

1373431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 22.

The square root of 1373431 is about 1171.9347251447. The cubic root of 1373431 is about 111.1566923727.

The spelling of 1373431 in words is "one million, three hundred seventy-three thousand, four hundred thirty-one".