130445541 has 6 divisors (see below), whose sum is σ = 188421350. Its totient is φ = 86963688.

The previous prime is 130445533. The next prime is 130445543. The reversal of 130445541 is 145544031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 85488516 + 44957025 = 9246^2 + 6705^2 .

It is not a de Polignac number, because 130445541 - 2³ = 130445533 is a prime.

It is a Duffinian number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 7246966 + ... + 7246983.

Almost surely, 2^130445541 is an apocalyptic number.

It is an amenable number.

130445541 is a deficient number, since it is larger than the sum of its proper divisors (57975809).

130445541 is a wasteful number, since it uses less digits than its factorization.

130445541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14493955 (or 14493952 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 130445541 is about 11421.2758043924. The cubic root of 130445541 is about 507.1577651714.

Adding to 130445541 its reverse (145544031), we get a palindrome (275989572).

The spelling of 130445541 in words is "one hundred thirty million, four hundred forty-five thousand, five hundred forty-one".