102148559 has 4 divisors (see below), whose sum is σ = 102272904. Its totient is φ = 102024216.

The previous prime is 102148549. The next prime is 102148561. The reversal of 102148559 is 955841201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102148559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102148549) 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, 60932 + ... + 62585.

It is an arithmetic number, because the mean of its divisors is an integer number (25568226).

Almost surely, 2^102148559 is an apocalyptic number.

102148559 is a deficient number, since it is larger than the sum of its proper divisors (124345).

102148559 is an equidigital number, since it uses as much as digits as its factorization.

102148559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124344.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 102148559 is about 10106.8570287701. The cubic root of 102148559 is about 467.4595982510.

The spelling of 102148559 in words is "one hundred two million, one hundred forty-eight thousand, five hundred fifty-nine".