31342159 has 2 divisors, whose sum is σ = 31342160. Its totient is φ = 31342158.

The previous prime is 31342139. The next prime is 31342177. The reversal of 31342159 is 95124313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31342159 - 2¹⁷ = 31211087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31342139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671079 + 15671080.

It is an arithmetic number, because the mean of its divisors is an integer number (15671080).

Almost surely, 2^31342159 is an apocalyptic number.

31342159 is a deficient number, since it is larger than the sum of its proper divisors (1).

31342159 is an equidigital number, since it uses as much as digits as its factorization.

31342159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 31342159 is about 5598.4068269464. The cubic root of 31342159 is about 315.2895934287.

The spelling of 31342159 in words is "thirty-one million, three hundred forty-two thousand, one hundred fifty-nine".