72450152 has 16 divisors (see below), whose sum is σ = 138407940. Its totient is φ = 35541376.

The previous prime is 72450139. The next prime is 72450163. The reversal of 72450152 is 25105427.

It can be written as a sum of positive squares in 2 ways, for example, as 66814276 + 5635876 = 8174^2 + 2374^2 .

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, 85013 + ... + 85860.

Almost surely, 2^72450152 is an apocalyptic number.

It is an amenable number.

72450152 is a deficient number, since it is larger than the sum of its proper divisors (65957788).

72450152 is a wasteful number, since it uses less digits than its factorization.

72450152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170932 (or 170928 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 72450152 is about 8511.7655042888. The cubic root of 72450152 is about 416.8819583574.

Adding to 72450152 its reverse (25105427), we get a palindrome (97555579).

The spelling of 72450152 in words is "seventy-two million, four hundred fifty thousand, one hundred fifty-two".