130501523 has 4 divisors (see below), whose sum is σ = 130543608. Its totient is φ = 130459440.

The previous prime is 130501513. The next prime is 130501541. The reversal of 130501523 is 325105031.

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

It is a cyclic number.

It is not a de Polignac number, because 130501523 - 2¹⁴ = 130485139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130501495 and 130501504.

It is not an unprimeable number, because it can be changed into a prime (130501513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15986 + ... + 22727.

It is an arithmetic number, because the mean of its divisors is an integer number (32635902).

Almost surely, 2^130501523 is an apocalyptic number.

130501523 is a deficient number, since it is larger than the sum of its proper divisors (42085).

130501523 is an equidigital number, since it uses as much as digits as its factorization.

130501523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42084.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 130501523 is about 11423.7263185005. The cubic root of 130501523 is about 507.2303053932.

Adding to 130501523 its reverse (325105031), we get a palindrome (455606554).

The spelling of 130501523 in words is "one hundred thirty million, five hundred one thousand, five hundred twenty-three".