1164431 has 2 divisors, whose sum is σ = 1164432. Its totient is φ = 1164430.

The previous prime is 1164419. The next prime is 1164433. The reversal of 1164431 is 1344611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1164431 - 2⁶ = 1164367 is a prime.

It is a super-2 number, since 2×1164431² = 2711799107522, which contains 22 as substring.

Together with 1164433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1164433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582215 + 582216.

It is an arithmetic number, because the mean of its divisors is an integer number (582216).

2^1164431 is an apocalyptic number.

1164431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164431 is an equidigital number, since it uses as much as digits as its factorization.

1164431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 1164431 is about 1079.0880408938. The cubic root of 1164431 is about 105.2053727973.

The spelling of 1164431 in words is "one million, one hundred sixty-four thousand, four hundred thirty-one".