72323154 has 24 divisors (see below), whose sum is σ = 156863772. Its totient is φ = 24082560.

The previous prime is 72323143. The next prime is 72323161. The reversal of 72323154 is 45132327.

It can be written as a sum of positive squares in 2 ways, for example, as 66048129 + 6275025 = 8127^2 + 2505^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 25302 + ... + 28014.

Almost surely, 2^72323154 is an apocalyptic number.

72323154 is an abundant number, since it is smaller than the sum of its proper divisors (84540618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72323154 is a wasteful number, since it uses less digits than its factorization.

72323154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202 (or 4199 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 72323154 is about 8504.3020877671. The cubic root of 72323154 is about 416.6382315173.

The spelling of 72323154 in words is "seventy-two million, three hundred twenty-three thousand, one hundred fifty-four".