130623397 has 4 divisors (see below), whose sum is σ = 130653900. Its totient is φ = 130592896.

The previous prime is 130623391. The next prime is 130623403. The reversal of 130623397 is 793326031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 793326031 = 179 ⋅4431989.

It is an interprime number because it is at equal distance from previous prime (130623391) and next prime (130623403).

It can be written as a sum of positive squares in 2 ways, for example, as 65836996 + 64786401 = 8114^2 + 8049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130623397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130623391) 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, 7522 + ... + 17827.

It is an arithmetic number, because the mean of its divisors is an integer number (32663475).

Almost surely, 2^130623397 is an apocalyptic number.

It is an amenable number.

130623397 is a deficient number, since it is larger than the sum of its proper divisors (30503).

130623397 is an equidigital number, since it uses as much as digits as its factorization.

130623397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30502.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 130623397 is about 11429.0593226214. The cubic root of 130623397 is about 507.3881552814.

The spelling of 130623397 in words is "one hundred thirty million, six hundred twenty-three thousand, three hundred ninety-seven".