72283045 has 4 divisors (see below), whose sum is σ = 86739660. Its totient is φ = 57826432.

The previous prime is 72283037. The next prime is 72283061. The reversal of 72283045 is 54038227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7496644 + 64786401 = 2738^2 + 8049^2 .

It is a cyclic number.

It is not a de Polignac number, because 72283045 - 2³ = 72283037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72282998 and 72283016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7228300 + ... + 7228309.

It is an arithmetic number, because the mean of its divisors is an integer number (21684915).

Almost surely, 2^72283045 is an apocalyptic number.

It is an amenable number.

72283045 is a deficient number, since it is larger than the sum of its proper divisors (14456615).

72283045 is a wasteful number, since it uses less digits than its factorization.

72283045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14456614.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 72283045 is about 8501.9436013185. The cubic root of 72283045 is about 416.5611974830.

The spelling of 72283045 in words is "seventy-two million, two hundred eighty-three thousand, forty-five".