72148417 has 8 divisors (see below), whose sum is σ = 78877440. Its totient is φ = 65447760.

The previous prime is 72148399. The next prime is 72148451. The reversal of 72148417 is 71484127.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72148417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72148477) 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, 1578 + ... + 12115.

It is an arithmetic number, because the mean of its divisors is an integer number (9859680).

Almost surely, 2^72148417 is an apocalyptic number.

It is an amenable number.

72148417 is a deficient number, since it is larger than the sum of its proper divisors (6729023).

72148417 is a wasteful number, since it uses less digits than its factorization.

72148417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14183.

The product of its digits is 12544, while the sum is 34.

The square root of 72148417 is about 8494.0224275663. The cubic root of 72148417 is about 416.3024200892.

The spelling of 72148417 in words is "seventy-two million, one hundred forty-eight thousand, four hundred seventeen".