72045583 has 2 divisors, whose sum is σ = 72045584. Its totient is φ = 72045582.

The previous prime is 72045563. The next prime is 72045601. The reversal of 72045583 is 38554027.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (38554027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72045583 - 2¹³ = 72037391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72045503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36022791 + 36022792.

It is an arithmetic number, because the mean of its divisors is an integer number (36022792).

Almost surely, 2^72045583 is an apocalyptic number.

72045583 is a deficient number, since it is larger than the sum of its proper divisors (1).

72045583 is an equidigital number, since it uses as much as digits as its factorization.

72045583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 72045583 is about 8487.9669532816. The cubic root of 72045583 is about 416.1045391091.

The spelling of 72045583 in words is "seventy-two million, forty-five thousand, five hundred eighty-three".