108269431 has 2 divisors, whose sum is σ = 108269432. Its totient is φ = 108269430.

The previous prime is 108269423. The next prime is 108269459. The reversal of 108269431 is 134962801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 108269431 - 2³ = 108269423 is a prime.

It is a super-2 number, since 2×108269431² = 23444539378127522, which contains 22 as substring.

It is equal to p_6209566 and since 108269431 and 6209566 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108269401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54134715 + 54134716.

It is an arithmetic number, because the mean of its divisors is an integer number (54134716).

Almost surely, 2^108269431 is an apocalyptic number.

108269431 is a deficient number, since it is larger than the sum of its proper divisors (1).

108269431 is an equidigital number, since it uses as much as digits as its factorization.

108269431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 108269431 is about 10405.2597757096. The cubic root of 108269431 is about 476.6160006678.

The spelling of 108269431 in words is "one hundred eight million, two hundred sixty-nine thousand, four hundred thirty-one".