130256545 has 16 divisors (see below), whose sum is σ = 162810000. Its totient is φ = 99920128.

The previous prime is 130256531. The next prime is 130256551. The reversal of 130256545 is 545652031.

It can be written as a sum of positive squares in 8 ways, for example, as 22801 + 130233744 = 151^2 + 11412^2 .

It is a cyclic number.

It is not a de Polignac number, because 130256545 - 2¹³ = 130248353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18591 + ... + 24619.

It is an arithmetic number, because the mean of its divisors is an integer number (10175625).

Almost surely, 2^130256545 is an apocalyptic number.

It is an amenable number.

130256545 is a deficient number, since it is larger than the sum of its proper divisors (32553455).

130256545 is a wasteful number, since it uses less digits than its factorization.

130256545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6212.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 130256545 is about 11412.9989485674. The cubic root of 130256545 is about 506.9127149722.

The spelling of 130256545 in words is "one hundred thirty million, two hundred fifty-six thousand, five hundred forty-five".