72453065 has 24 divisors (see below), whose sum is σ = 94453128. Its totient is φ = 53168640.

The previous prime is 72453053. The next prime is 72453079. The reversal of 72453065 is 56035427.

It can be written as a sum of positive squares in 4 ways, for example, as 9853321 + 62599744 = 3139^2 + 7912^2 .

It is not a de Polignac number, because 72453065 - 2¹² = 72448969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156935 + ... + 157395.

It is an arithmetic number, because the mean of its divisors is an integer number (3935547).

Almost surely, 2^72453065 is an apocalyptic number.

It is an amenable number.

72453065 is a deficient number, since it is larger than the sum of its proper divisors (22000063).

72453065 is a wasteful number, since it uses less digits than its factorization.

72453065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 72453065 is about 8511.9366186550. The cubic root of 72453065 is about 416.8875454672.

The spelling of 72453065 in words is "seventy-two million, four hundred fifty-three thousand, sixty-five".