130072318 has 4 divisors (see below), whose sum is σ = 195108480. Its totient is φ = 65036158.

The previous prime is 130072307. The next prime is 130072333. The reversal of 130072318 is 813270031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 813270031 = 7 ⋅116181433.

It is a junction number, because it is equal to n+sod(n) for n = 130072292 and 130072301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32518078 + ... + 32518081.

It is an arithmetic number, because the mean of its divisors is an integer number (48777120).

Almost surely, 2^130072318 is an apocalyptic number.

130072318 is a deficient number, since it is larger than the sum of its proper divisors (65036162).

130072318 is an equidigital number, since it uses as much as digits as its factorization.

130072318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65036161.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 130072318 is about 11404.9251641561. The cubic root of 130072318 is about 506.6736199607.

The spelling of 130072318 in words is "one hundred thirty million, seventy-two thousand, three hundred eighteen".