130022645 has 4 divisors (see below), whose sum is σ = 156027180. Its totient is φ = 104018112.

The previous prime is 130022639. The next prime is 130022663. The reversal of 130022645 is 546220031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50438404 + 79584241 = 7102^2 + 8921^2 .

It is a cyclic number.

It is not a de Polignac number, because 130022645 - 2¹² = 130018549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130022645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13002260 + ... + 13002269.

It is an arithmetic number, because the mean of its divisors is an integer number (39006795).

Almost surely, 2^130022645 is an apocalyptic number.

It is an amenable number.

130022645 is a deficient number, since it is larger than the sum of its proper divisors (26004535).

130022645 is an equidigital number, since it uses as much as digits as its factorization.

130022645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26004534.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 130022645 is about 11402.7472566921. The cubic root of 130022645 is about 506.6091142981.

Adding to 130022645 its reverse (546220031), we get a palindrome (676242676).

The spelling of 130022645 in words is "one hundred thirty million, twenty-two thousand, six hundred forty-five".