431401169 has 2 divisors, whose sum is σ = 431401170. Its totient is φ = 431401168.

The previous prime is 431401123. The next prime is 431401193. The reversal of 431401169 is 961104134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409657600 + 21743569 = 20240^2 + 4663^2 .

It is a cyclic number.

It is not a de Polignac number, because 431401169 - 2¹⁶ = 431335633 is a prime.

It is a super-2 number, since 2×431401169² = 372213937229133122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (431407169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215700584 + 215700585.

It is an arithmetic number, because the mean of its divisors is an integer number (215700585).

Almost surely, 2^431401169 is an apocalyptic number.

It is an amenable number.

431401169 is a deficient number, since it is larger than the sum of its proper divisors (1).

431401169 is an equidigital number, since it uses as much as digits as its factorization.

431401169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 431401169 is about 20770.1990601920. The cubic root of 431401169 is about 755.6031722209.

The spelling of 431401169 in words is "four hundred thirty-one million, four hundred one thousand, one hundred sixty-nine".