130022445 has 32 divisors (see below), whose sum is σ = 242823168. Its totient is φ = 58171968.

The previous prime is 130022437. The next prime is 130022449. The reversal of 130022445 is 544220031.

It is not a de Polignac number, because 130022445 - 2³ = 130022437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130022449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8239 + ... + 18108.

It is an arithmetic number, because the mean of its divisors is an integer number (7588224).

Almost surely, 2^130022445 is an apocalyptic number.

130022445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130022445 is a deficient number, since it is larger than the sum of its proper divisors (112800723).

130022445 is a wasteful number, since it uses less digits than its factorization.

130022445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26409.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 130022445 is about 11402.7384868724. The cubic root of 130022445 is about 506.6088545437.

Adding to 130022445 its reverse (544220031), we get a palindrome (674242476).

The spelling of 130022445 in words is "one hundred thirty million, twenty-two thousand, four hundred forty-five".