102659407 has 4 divisors (see below), whose sum is σ = 103038496. Its totient is φ = 102280320.

The previous prime is 102659393. The next prime is 102659437. The reversal of 102659407 is 704956201.

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 102659407 - 2¹⁵ = 102626639 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 (102659437) 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, 189138 + ... + 189679.

It is an arithmetic number, because the mean of its divisors is an integer number (25759624).

Almost surely, 2^102659407 is an apocalyptic number.

102659407 is a deficient number, since it is larger than the sum of its proper divisors (379089).

102659407 is an equidigital number, since it uses as much as digits as its factorization.

102659407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379088.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 102659407 is about 10132.0978577983. The cubic root of 102659407 is about 468.2375626270.

The spelling of 102659407 in words is "one hundred two million, six hundred fifty-nine thousand, four hundred seven".