31472159 has 2 divisors, whose sum is σ = 31472160. Its totient is φ = 31472158.

The previous prime is 31472153. The next prime is 31472167. The reversal of 31472159 is 95127413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31472159 - 2⁴ = 31472143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31472153) 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, 15736079 + 15736080.

It is an arithmetic number, because the mean of its divisors is an integer number (15736080).

Almost surely, 2^31472159 is an apocalyptic number.

31472159 is a deficient number, since it is larger than the sum of its proper divisors (1).

31472159 is an equidigital number, since it uses as much as digits as its factorization.

31472159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 31472159 is about 5610.0052584646. The cubic root of 31472159 is about 315.7249081358.

The spelling of 31472159 in words is "thirty-one million, four hundred seventy-two thousand, one hundred fifty-nine".