102660859 has 4 divisors (see below), whose sum is σ = 117326704. Its totient is φ = 87995016.

The previous prime is 102660853. The next prime is 102660863. The reversal of 102660859 is 958066201.

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 102660859 - 2⁵ = 102660827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102660853) 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, 7332912 + ... + 7332925.

It is an arithmetic number, because the mean of its divisors is an integer number (29331676).

Almost surely, 2^102660859 is an apocalyptic number.

102660859 is a deficient number, since it is larger than the sum of its proper divisors (14665845).

102660859 is an equidigital number, since it uses as much as digits as its factorization.

102660859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14665844.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 102660859 is about 10132.1695110179. The cubic root of 102660859 is about 468.2397701783.

The spelling of 102660859 in words is "one hundred two million, six hundred sixty thousand, eight hundred fifty-nine".