102070609 has 3 divisors (see below), whose sum is σ = 102080713. Its totient is φ = 102060506.

The previous prime is 102070597. The next prime is 102070621. The reversal of 102070609 is 906070201.

The square root of 102070609 is 10103.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (102070597) and next prime (102070621).

It is a de Polignac number, because none of the positive numbers 2^k-102070609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102010609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5052 + ... + 15154.

Almost surely, 2^102070609 is an apocalyptic number.

102070609 is the 10103-rd square number.

102070609 is the 5052-nd centered octagonal number.

It is an amenable number.

102070609 is a deficient number, since it is larger than the sum of its proper divisors (10104).

102070609 is an frugal number, since it uses more digits than its factorization.

102070609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20206 (or 10103 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The cubic root of 102070609 is about 467.3406611893.

Multiplying 102070609 by its sum of digits (25), we get a square (2551765225 = 50515²).

The spelling of 102070609 in words is "one hundred two million, seventy thousand, six hundred nine".