445525130 has 8 divisors (see below), whose sum is σ = 801945252. Its totient is φ = 178210048.

The previous prime is 445525123. The next prime is 445525141. The reversal of 445525130 is 31525544.

It can be written as a sum of positive squares in 2 ways, for example, as 402845041 + 42680089 = 20071^2 + 6533^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 445525093 and 445525102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22276247 + ... + 22276266.

Almost surely, 2^445525130 is an apocalyptic number.

445525130 is a deficient number, since it is larger than the sum of its proper divisors (356420122).

445525130 is a wasteful number, since it uses less digits than its factorization.

445525130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44552520.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 445525130 is about 21107.4662145886. The cubic root of 445525130 is about 763.7608657847.

The spelling of 445525130 in words is "four hundred forty-five million, five hundred twenty-five thousand, one hundred thirty".