31422159 has 12 divisors (see below), whose sum is σ = 45559800. Its totient is φ = 20868624.

The previous prime is 31422151. The next prime is 31422169. The reversal of 31422159 is 95122413.

It is not a de Polignac number, because 31422159 - 2³ = 31422151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4069 + ... + 8910.

It is an arithmetic number, because the mean of its divisors is an integer number (3796650).

Almost surely, 2^31422159 is an apocalyptic number.

31422159 is a deficient number, since it is larger than the sum of its proper divisors (14137641).

31422159 is a wasteful number, since it uses less digits than its factorization.

31422159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13254 (or 13251 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 31422159 is about 5605.5471633017. The cubic root of 31422159 is about 315.5576215223.

The spelling of 31422159 in words is "thirty-one million, four hundred twenty-two thousand, one hundred fifty-nine".