72130623 has 8 divisors (see below), whose sum is σ = 96558336. Its totient is φ = 47895000.

The previous prime is 72130613. The next prime is 72130633. The reversal of 72130623 is 32603127.

It is an interprime number because it is at equal distance from previous prime (72130613) and next prime (72130633).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72130623 - 2⁶ = 72130559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72130593 and 72130602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72130613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47143 + ... + 48648.

It is an arithmetic number, because the mean of its divisors is an integer number (12069792).

Almost surely, 2^72130623 is an apocalyptic number.

72130623 is a deficient number, since it is larger than the sum of its proper divisors (24427713).

72130623 is a wasteful number, since it uses less digits than its factorization.

72130623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96045.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 72130623 is about 8492.9749204858. The cubic root of 72130623 is about 416.2681929842.

The spelling of 72130623 in words is "seventy-two million, one hundred thirty thousand, six hundred twenty-three".