31542152417 has 2 divisors, whose sum is σ = 31542152418. Its totient is φ = 31542152416.

The previous prime is 31542152371. The next prime is 31542152419. The reversal of 31542152417 is 71425124513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22772017216 + 8770135201 = 150904^2 + 93649^2 .

It is a cyclic number.

It is not a de Polignac number, because 31542152417 - 2¹⁶ = 31542086881 is a prime.

Together with 31542152419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31542152419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15771076208 + 15771076209.

It is an arithmetic number, because the mean of its divisors is an integer number (15771076209).

Almost surely, 2^31542152417 is an apocalyptic number.

It is an amenable number.

31542152417 is a deficient number, since it is larger than the sum of its proper divisors (1).

31542152417 is an equidigital number, since it uses as much as digits as its factorization.

31542152417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 35.

The spelling of 31542152417 in words is "thirty-one billion, five hundred forty-two million, one hundred fifty-two thousand, four hundred seventeen".