130444545 has 32 divisors (see below), whose sum is σ = 260213760. Its totient is φ = 54210240.

The previous prime is 130444507. The next prime is 130444547. The reversal of 130444545 is 545444031.

It is not a de Polignac number, because 130444545 - 2¹⁴ = 130428161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130444547) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 55315 + ... + 57624.

It is an arithmetic number, because the mean of its divisors is an integer number (8131680).

Almost surely, 2^130444545 is an apocalyptic number.

130444545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130444545 is a deficient number, since it is larger than the sum of its proper divisors (129769215).

130444545 is a wasteful number, since it uses less digits than its factorization.

130444545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112965.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 130444545 is about 11421.2322014746. The cubic root of 130444545 is about 507.1564743890.

Adding to 130444545 its reverse (545444031), we get a palindrome (675888576).

The spelling of 130444545 in words is "one hundred thirty million, four hundred forty-four thousand, five hundred forty-five".