72143467 has 6 divisors (see below), whose sum is σ = 79298324. Its totient is φ = 65584860.

The previous prime is 72143453. The next prime is 72143471. The reversal of 72143467 is 76434127.

It is a de Polignac number, because none of the positive numbers 2^k-72143467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72143447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 297993 + ... + 298234.

Almost surely, 2^72143467 is an apocalyptic number.

72143467 is a deficient number, since it is larger than the sum of its proper divisors (7154857).

72143467 is a wasteful number, since it uses less digits than its factorization.

72143467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596249 (or 596238 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 72143467 is about 8493.7310411856. The cubic root of 72143467 is about 416.2928992330.

The spelling of 72143467 in words is "seventy-two million, one hundred forty-three thousand, four hundred sixty-seven".