72498245 has 8 divisors (see below), whose sum is σ = 87501816. Its totient is φ = 57662656.

The previous prime is 72498241. The next prime is 72498263. The reversal of 72498245 is 54289427.

It can be written as a sum of positive squares in 4 ways, for example, as 38962564 + 33535681 = 6242^2 + 5791^2 .

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 72498245 - 2² = 72498241 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 (72498241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41042 + ... + 42771.

It is an arithmetic number, because the mean of its divisors is an integer number (10937727).

Almost surely, 2^72498245 is an apocalyptic number.

It is an amenable number.

72498245 is a deficient number, since it is larger than the sum of its proper divisors (15003571).

72498245 is a wasteful number, since it uses less digits than its factorization.

72498245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83991.

The product of its digits is 161280, while the sum is 41.

The square root of 72498245 is about 8514.5901251910. The cubic root of 72498245 is about 416.9741811655.

The spelling of 72498245 in words is "seventy-two million, four hundred ninety-eight thousand, two hundred forty-five".