72775148 has 24 divisors (see below), whose sum is σ = 130325328. Its totient is φ = 35545536.

The previous prime is 72775141. The next prime is 72775159. The reversal of 72775148 is 84157727.

It is not an unprimeable number, because it can be changed into a prime (72775141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59390 + ... + 60602.

It is an arithmetic number, because the mean of its divisors is an integer number (5430222).

Almost surely, 2^72775148 is an apocalyptic number.

It is an amenable number.

72775148 is a deficient number, since it is larger than the sum of its proper divisors (57550180).

72775148 is a wasteful number, since it uses less digits than its factorization.

72775148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553 (or 1551 counting only the distinct ones).

The product of its digits is 109760, while the sum is 41.

The square root of 72775148 is about 8530.8351291066. The cubic root of 72775148 is about 417.5043765901.

The spelling of 72775148 in words is "seventy-two million, seven hundred seventy-five thousand, one hundred forty-eight".