31298051 has 2 divisors, whose sum is σ = 31298052. Its totient is φ = 31298050.

The previous prime is 31298027. The next prime is 31298081. The reversal of 31298051 is 15089213.

It is a weak prime.

It is an emirp because it is prime and its reverse (15089213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31298051 - 2¹⁰ = 31297027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31298011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15649025 + 15649026.

It is an arithmetic number, because the mean of its divisors is an integer number (15649026).

Almost surely, 2^31298051 is an apocalyptic number.

31298051 is a deficient number, since it is larger than the sum of its proper divisors (1).

31298051 is an equidigital number, since it uses as much as digits as its factorization.

31298051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 31298051 is about 5594.4661050005. The cubic root of 31298051 is about 315.1416210422.

The spelling of 31298051 in words is "thirty-one million, two hundred ninety-eight thousand, fifty-one".