102979571 has 4 divisors (see below), whose sum is σ = 103200552. Its totient is φ = 102758592.

The previous prime is 102979561. The next prime is 102979619. The reversal of 102979571 is 175979201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102979571 - 2⁶ = 102979507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102979501) 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, 109790 + ... + 110723.

It is an arithmetic number, because the mean of its divisors is an integer number (25800138).

Almost surely, 2^102979571 is an apocalyptic number.

102979571 is a deficient number, since it is larger than the sum of its proper divisors (220981).

102979571 is an equidigital number, since it uses as much as digits as its factorization.

102979571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220980.

The product of its (nonzero) digits is 39690, while the sum is 41.

The square root of 102979571 is about 10147.8850505906. The cubic root of 102979571 is about 468.7238218032.

The spelling of 102979571 in words is "one hundred two million, nine hundred seventy-nine thousand, five hundred seventy-one".