102998057 has 4 divisors (see below), whose sum is σ = 103024596. Its totient is φ = 102971520.

The previous prime is 102998041. The next prime is 102998059. The reversal of 102998057 is 750899201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62789776 + 40208281 = 7924^2 + 6341^2 .

It is a cyclic number.

It is not a de Polignac number, because 102998057 - 2⁴ = 102998041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102998059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6188 + ... + 15629.

It is an arithmetic number, because the mean of its divisors is an integer number (25756149).

Almost surely, 2^102998057 is an apocalyptic number.

It is an amenable number.

102998057 is a deficient number, since it is larger than the sum of its proper divisors (26539).

102998057 is an equidigital number, since it uses as much as digits as its factorization.

102998057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26538.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 102998057 is about 10148.7958399014. The cubic root of 102998057 is about 468.7518672044.

The spelling of 102998057 in words is "one hundred two million, nine hundred ninety-eight thousand, fifty-seven".