130445545 has 12 divisors (see below), whose sum is σ = 165209220. Its totient is φ = 98862624.

The previous prime is 130445543. The next prime is 130445593. The reversal of 130445545 is 545544031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44475561 + 85969984 = 6669^2 + 9272^2 .

It is not a de Polignac number, because 130445545 - 2¹ = 130445543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130445543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34330 + ... + 37939.

It is an arithmetic number, because the mean of its divisors is an integer number (13767435).

Almost surely, 2^130445545 is an apocalyptic number.

It is an amenable number.

130445545 is a deficient number, since it is larger than the sum of its proper divisors (34763675).

130445545 is an equidigital number, since it uses as much as digits as its factorization.

130445545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72312 (or 72293 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 130445545 is about 11421.2759795042. The cubic root of 130445545 is about 507.1577703552.

Adding to 130445545 its reverse (545544031), we get a palindrome (675989576).

The spelling of 130445545 in words is "one hundred thirty million, four hundred forty-five thousand, five hundred forty-five".