31342097 has 2 divisors, whose sum is σ = 31342098. Its totient is φ = 31342096.

The previous prime is 31342093. The next prime is 31342121. The reversal of 31342097 is 79024313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20079361 + 11262736 = 4481^2 + 3356^2 .

It is a cyclic number.

It is not a de Polignac number, because 31342097 - 2² = 31342093 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31342093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671048 + 15671049.

It is an arithmetic number, because the mean of its divisors is an integer number (15671049).

Almost surely, 2^31342097 is an apocalyptic number.

It is an amenable number.

31342097 is a deficient number, since it is larger than the sum of its proper divisors (1).

31342097 is an equidigital number, since it uses as much as digits as its factorization.

31342097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 31342097 is about 5598.4012896540. The cubic root of 31342097 is about 315.2893855302.

The spelling of 31342097 in words is "thirty-one million, three hundred forty-two thousand, ninety-seven".