130821659 has 4 divisors (see below), whose sum is σ = 130847304. Its totient is φ = 130796016.

The previous prime is 130821641. The next prime is 130821661. The reversal of 130821659 is 956128031.

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 130821659 - 2¹² = 130817563 is a prime.

It is a super-2 number, since 2×130821659² = 34228612927024562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130821629) 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, 2282 + ... + 16335.

It is an arithmetic number, because the mean of its divisors is an integer number (32711826).

Almost surely, 2^130821659 is an apocalyptic number.

130821659 is a deficient number, since it is larger than the sum of its proper divisors (25645).

130821659 is an equidigital number, since it uses as much as digits as its factorization.

130821659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25644.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 130821659 is about 11437.7296261102. The cubic root of 130821659 is about 507.6447324347.

It can be divided in two parts, 13082 and 1659, that added together give a palindrome (14741).

The spelling of 130821659 in words is "one hundred thirty million, eight hundred twenty-one thousand, six hundred fifty-nine".