130051445 has 12 divisors (see below), whose sum is σ = 165783684. Its totient is φ = 97920000.

The previous prime is 130051433. The next prime is 130051463. The reversal of 130051445 is 544150031.

It can be written as a sum of positive squares in 6 ways, for example, as 43151761 + 86899684 = 6569^2 + 9322^2 .

It is not a de Polignac number, because 130051445 - 2⁶ = 130051381 is a prime.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130051445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43556 + ... + 46445.

It is an arithmetic number, because the mean of its divisors is an integer number (13815307).

Almost surely, 2^130051445 is an apocalyptic number.

It is an amenable number.

130051445 is a deficient number, since it is larger than the sum of its proper divisors (35732239).

130051445 is an equidigital number, since it uses as much as digits as its factorization.

130051445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90040 (or 90023 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 130051445 is about 11404.0100403323. The cubic root of 130051445 is about 506.6465161558.

It can be divided in two parts, 13005 and 1445, that multiplied together give a square (18792225 = 4335²).

The spelling of 130051445 in words is "one hundred thirty million, fifty-one thousand, four hundred forty-five".