152031317 has 2 divisors, whose sum is σ = 152031318. Its totient is φ = 152031316.

The previous prime is 152031287. The next prime is 152031343. The reversal of 152031317 is 713130251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151560721 + 470596 = 12311^2 + 686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152031317 is a prime.

It is a super-2 number, since 2×152031317² = 46227042697508978, which contains 22 as substring.

It is equal to p_8552111 and since 152031317 and 8552111 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 152031292 and 152031301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152033317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76015658 + 76015659.

It is an arithmetic number, because the mean of its divisors is an integer number (76015659).

Almost surely, 2^152031317 is an apocalyptic number.

It is an amenable number.

152031317 is a deficient number, since it is larger than the sum of its proper divisors (1).

152031317 is an equidigital number, since it uses as much as digits as its factorization.

152031317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 152031317 is about 12330.0980125869. The cubic root of 152031317 is about 533.7169791286.

Adding to 152031317 its reverse (713130251), we get a palindrome (865161568).

The spelling of 152031317 in words is "one hundred fifty-two million, thirty-one thousand, three hundred seventeen".