102642607 has 4 divisors (see below), whose sum is σ = 102667680. Its totient is φ = 102617536.

The previous prime is 102642577. The next prime is 102642619. The reversal of 102642607 is 706246201.

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-102642607 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 (102642647) 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, 4807 + ... + 15112.

It is an arithmetic number, because the mean of its divisors is an integer number (25666920).

Almost surely, 2^102642607 is an apocalyptic number.

102642607 is a deficient number, since it is larger than the sum of its proper divisors (25073).

102642607 is an equidigital number, since it uses as much as digits as its factorization.

102642607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25072.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 102642607 is about 10131.2687754299. The cubic root of 102642607 is about 468.2120191968.

Adding to 102642607 its reverse (706246201), we get a palindrome (808888808).

The spelling of 102642607 in words is "one hundred two million, six hundred forty-two thousand, six hundred seven".