72453152 has 12 divisors (see below), whose sum is σ = 142642206. Its totient is φ = 36226560.

The previous prime is 72453131. The next prime is 72453211. The reversal of 72453152 is 25135427.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41938576 + 30514576 = 6476^2 + 5524^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1132049 + ... + 1132112.

Almost surely, 2^72453152 is an apocalyptic number.

It is an amenable number.

72453152 is a deficient number, since it is larger than the sum of its proper divisors (70189054).

72453152 is a wasteful number, since it uses less digits than its factorization.

72453152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264171 (or 2264163 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 72453152 is about 8511.9417291239. The cubic root of 72453152 is about 416.8877123302.

Adding to 72453152 its reverse (25135427), we get a palindrome (97588579).

It can be divided in two parts, 72 and 453152, that multiplied together give a square (32626944 = 5712²).

The spelling of 72453152 in words is "seventy-two million, four hundred fifty-three thousand, one hundred fifty-two".