72518 has 8 divisors (see below), whose sum is σ = 110160. Its totient is φ = 35800.

The previous prime is 72503. The next prime is 72533. The reversal of 72518 is 81527.

It is an interprime number because it is at equal distance from previous prime (72503) and next prime (72533).

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72493 and 72502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 381.

It is an arithmetic number, because the mean of its divisors is an integer number (13770).

2⁷²⁵¹⁸ is an apocalyptic number.

72518 is a deficient number, since it is larger than the sum of its proper divisors (37642).

72518 is a wasteful number, since it uses less digits than its factorization.

72518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462.

The product of its digits is 560, while the sum is 23.

The square root of 72518 is about 269.2916634432. The cubic root of 72518 is about 41.7012051401.

Subtracting 72518 from its reverse (81527), we obtain a palindrome (9009).

The spelling of 72518 in words is "seventy-two thousand, five hundred eighteen".