102897013 has 2 divisors, whose sum is σ = 102897014. Its totient is φ = 102897012.

The previous prime is 102897007. The next prime is 102897023. The reversal of 102897013 is 310798201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84217329 + 18679684 = 9177^2 + 4322^2 .

It is a cyclic number.

It is not a de Polignac number, because 102897013 - 2⁹ = 102896501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102897023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51448506 + 51448507.

It is an arithmetic number, because the mean of its divisors is an integer number (51448507).

Almost surely, 2^102897013 is an apocalyptic number.

It is an amenable number.

102897013 is a deficient number, since it is larger than the sum of its proper divisors (1).

102897013 is an equidigital number, since it uses as much as digits as its factorization.

102897013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 102897013 is about 10143.8164908480. The cubic root of 102897013 is about 468.5985307818.

The spelling of 102897013 in words is "one hundred two million, eight hundred ninety-seven thousand, thirteen".