72890159 has 2 divisors, whose sum is σ = 72890160. Its totient is φ = 72890158.

The previous prime is 72890141. The next prime is 72890173. The reversal of 72890159 is 95109827.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72890159 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72890119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36445079 + 36445080.

It is an arithmetic number, because the mean of its divisors is an integer number (36445080).

Almost surely, 2^72890159 is an apocalyptic number.

72890159 is a deficient number, since it is larger than the sum of its proper divisors (1).

72890159 is an equidigital number, since it uses as much as digits as its factorization.

72890159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 72890159 is about 8537.5733671811. The cubic root of 72890159 is about 417.7241966995.

The spelling of 72890159 in words is "seventy-two million, eight hundred ninety thousand, one hundred fifty-nine".