130156723 has 4 divisors (see below), whose sum is σ = 130909248. Its totient is φ = 129404200.

The previous prime is 130156721. The next prime is 130156739. The reversal of 130156723 is 327651031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327651031 = 23 ⋅14245697.

It is a cyclic number.

It is not a de Polignac number, because 130156723 - 2¹ = 130156721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130156691 and 130156700.

It is not an unprimeable number, because it can be changed into a prime (130156721) 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, 376003 + ... + 376348.

It is an arithmetic number, because the mean of its divisors is an integer number (32727312).

Almost surely, 2^130156723 is an apocalyptic number.

130156723 is a deficient number, since it is larger than the sum of its proper divisors (752525).

130156723 is an equidigital number, since it uses as much as digits as its factorization.

130156723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752524.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 130156723 is about 11408.6249390538. The cubic root of 130156723 is about 506.7831911606.

The spelling of 130156723 in words is "one hundred thirty million, one hundred fifty-six thousand, seven hundred twenty-three".