431116253 has 2 divisors, whose sum is σ = 431116254. Its totient is φ = 431116252.

The previous prime is 431116249. The next prime is 431116261. The reversal of 431116253 is 352611134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308283364 + 122832889 = 17558^2 + 11083^2 .

It is a cyclic number.

It is not a de Polignac number, because 431116253 - 2² = 431116249 is a prime.

It is a super-2 number, since 2×431116253² = 371722447201520018, which contains 22 as substring.

It is equal to p_22904216 and since 431116253 and 22904216 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 (431116453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215558126 + 215558127.

It is an arithmetic number, because the mean of its divisors is an integer number (215558127).

Almost surely, 2^431116253 is an apocalyptic number.

It is an amenable number.

431116253 is a deficient number, since it is larger than the sum of its proper divisors (1).

431116253 is an equidigital number, since it uses as much as digits as its factorization.

431116253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 431116253 is about 20763.3391582375. The cubic root of 431116253 is about 755.4367912431.

Adding to 431116253 its reverse (352611134), we get a palindrome (783727387).

The spelling of 431116253 in words is "four hundred thirty-one million, one hundred sixteen thousand, two hundred fifty-three".