31480507 has 2 divisors, whose sum is σ = 31480508. Its totient is φ = 31480506.

The previous prime is 31480441. The next prime is 31480529. The reversal of 31480507 is 70508413.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31480507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31481507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15740253 + 15740254.

It is an arithmetic number, because the mean of its divisors is an integer number (15740254).

Almost surely, 2^31480507 is an apocalyptic number.

31480507 is a deficient number, since it is larger than the sum of its proper divisors (1).

31480507 is an equidigital number, since it uses as much as digits as its factorization.

31480507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 31480507 is about 5610.7492369558. The cubic root of 31480507 is about 315.7528210447.

The spelling of 31480507 in words is "thirty-one million, four hundred eighty thousand, five hundred seven".