72231383 has 8 divisors (see below), whose sum is σ = 83681568. Its totient is φ = 61064064.

The previous prime is 72231361. The next prime is 72231389. The reversal of 72231383 is 38313227.

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

It is a cyclic number.

It is not a de Polignac number, because 72231383 - 2⁶ = 72231319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72231389) 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, 70166 + ... + 71187.

It is an arithmetic number, because the mean of its divisors is an integer number (10460196).

Almost surely, 2^72231383 is an apocalyptic number.

72231383 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

72231383 is a deficient number, since it is larger than the sum of its proper divisors (11450185).

72231383 is a wasteful number, since it uses less digits than its factorization.

72231383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141433.

The product of its digits is 6048, while the sum is 29.

The square root of 72231383 is about 8498.9048117978. The cubic root of 72231383 is about 416.4619325557.

The spelling of 72231383 in words is "seventy-two million, two hundred thirty-one thousand, three hundred eighty-three".