130521135145 has 4 divisors (see below), whose sum is σ = 156625362180. Its totient is φ = 104416908112.

The previous prime is 130521135119. The next prime is 130521135179. The reversal of 130521135145 is 541531125031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40375276096 + 90145859049 = 200936^2 + 300243^2 .

It is a cyclic number.

It is not a de Polignac number, because 130521135145 - 2⁹ = 130521134633 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13052113510 + ... + 13052113519.

It is an arithmetic number, because the mean of its divisors is an integer number (39156340545).

Almost surely, 2^130521135145 is an apocalyptic number.

It is an amenable number.

130521135145 is a deficient number, since it is larger than the sum of its proper divisors (26104227035).

130521135145 is an equidigital number, since it uses as much as digits as its factorization.

130521135145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26104227034.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 130521135145 in words is "one hundred thirty billion, five hundred twenty-one million, one hundred thirty-five thousand, one hundred forty-five".