72146433 has 8 divisors (see below), whose sum is σ = 96551296. Its totient is φ = 47919600.

The previous prime is 72146387. The next prime is 72146443. The reversal of 72146433 is 33464127.

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

It is not a de Polignac number, because 72146433 - 2⁸ = 72146177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72146433.

It is not an unprimeable number, because it can be changed into a prime (72146443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43558 + ... + 45183.

It is an arithmetic number, because the mean of its divisors is an integer number (12068912).

Almost surely, 2^72146433 is an apocalyptic number.

It is an amenable number.

72146433 is a deficient number, since it is larger than the sum of its proper divisors (24404863).

72146433 is a wasteful number, since it uses less digits than its factorization.

72146433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89015.

The product of its digits is 12096, while the sum is 30.

The square root of 72146433 is about 8493.9056387506. The cubic root of 72146433 is about 416.2986041054.

The spelling of 72146433 in words is "seventy-two million, one hundred forty-six thousand, four hundred thirty-three".