312431153 has 2 divisors, whose sum is σ = 312431154. Its totient is φ = 312431152.

The previous prime is 312431143. The next prime is 312431179. The reversal of 312431153 is 351134213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247338529 + 65092624 = 15727^2 + 8068^2 .

It is an emirp because it is prime and its reverse (351134213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312431153 - 2⁶ = 312431089 is a prime.

It is a super-2 number, since 2×312431153² = 195226450729818818, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (312431143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156215576 + 156215577.

It is an arithmetic number, because the mean of its divisors is an integer number (156215577).

Almost surely, 2^312431153 is an apocalyptic number.

It is an amenable number.

312431153 is a deficient number, since it is larger than the sum of its proper divisors (1).

312431153 is an equidigital number, since it uses as much as digits as its factorization.

312431153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 312431153 is about 17675.7221351774. The cubic root of 312431153 is about 678.5545659527.

Adding to 312431153 its reverse (351134213), we get a palindrome (663565366).

The spelling of 312431153 in words is "three hundred twelve million, four hundred thirty-one thousand, one hundred fifty-three".