31032097 has 2 divisors, whose sum is σ = 31032098. Its totient is φ = 31032096.

The previous prime is 31032091. The next prime is 31032139. The reversal of 31032097 is 79023013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19088161 + 11943936 = 4369^2 + 3456^2 .

It is a cyclic number.

It is not a de Polignac number, because 31032097 - 2⁷ = 31031969 is a prime.

It is not a weakly prime, because it can be changed into another prime (31032091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516048 + 15516049.

It is an arithmetic number, because the mean of its divisors is an integer number (15516049).

Almost surely, 2^31032097 is an apocalyptic number.

It is an amenable number.

31032097 is a deficient number, since it is larger than the sum of its proper divisors (1).

31032097 is an equidigital number, since it uses as much as digits as its factorization.

31032097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 31032097 is about 5570.6460128068. The cubic root of 31032097 is about 314.2464460088.

The spelling of 31032097 in words is "thirty-one million, thirty-two thousand, ninety-seven".