31413097 has 2 divisors, whose sum is σ = 31413098. Its totient is φ = 31413096.

The previous prime is 31413089. The next prime is 31413103. The reversal of 31413097 is 79031413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31404816 + 8281 = 5604^2 + 91^2 .

It is an emirp because it is prime and its reverse (79031413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31413097 - 2³ = 31413089 is a prime.

It is not a weakly prime, because it can be changed into another prime (31413077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15706548 + 15706549.

It is an arithmetic number, because the mean of its divisors is an integer number (15706549).

Almost surely, 2^31413097 is an apocalyptic number.

It is an amenable number.

31413097 is a deficient number, since it is larger than the sum of its proper divisors (1).

31413097 is an equidigital number, since it uses as much as digits as its factorization.

31413097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 31413097 is about 5604.7387985525. The cubic root of 31413097 is about 315.5272835040.

The spelling of 31413097 in words is "thirty-one million, four hundred thirteen thousand, ninety-seven".