130161523 has 4 divisors (see below), whose sum is σ = 133679440. Its totient is φ = 126643608.

The previous prime is 130161517. The next prime is 130161527. The reversal of 130161523 is 325161031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325161031 = 13 ⋅25012387.

It is a cyclic number.

It is not a de Polignac number, because 130161523 - 2⁵ = 130161491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130161494 and 130161503.

It is not an unprimeable number, because it can be changed into a prime (130161527) 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, 1758903 + ... + 1758976.

It is an arithmetic number, because the mean of its divisors is an integer number (33419860).

Almost surely, 2^130161523 is an apocalyptic number.

130161523 is a deficient number, since it is larger than the sum of its proper divisors (3517917).

130161523 is an equidigital number, since it uses as much as digits as its factorization.

130161523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517916.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 130161523 is about 11408.8353042719. The cubic root of 130161523 is about 506.7894209052.

The spelling of 130161523 in words is "one hundred thirty million, one hundred sixty-one thousand, five hundred twenty-three".