102242579 has 2 divisors, whose sum is σ = 102242580. Its totient is φ = 102242578.

The previous prime is 102242551. The next prime is 102242587. The reversal of 102242579 is 975242201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102242579 - 2⁸ = 102242323 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (102242549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51121289 + 51121290.

It is an arithmetic number, because the mean of its divisors is an integer number (51121290).

Almost surely, 2^102242579 is an apocalyptic number.

102242579 is a deficient number, since it is larger than the sum of its proper divisors (1).

102242579 is an equidigital number, since it uses as much as digits as its factorization.

102242579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 102242579 is about 10111.5072565864. The cubic root of 102242579 is about 467.6029746379.

The spelling of 102242579 in words is "one hundred two million, two hundred forty-two thousand, five hundred seventy-nine".