72152154 has 16 divisors (see below), whose sum is σ = 160338240. Its totient is φ = 24050700.

The previous prime is 72152153. The next prime is 72152167. The reversal of 72152154 is 45125127.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72152153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668022 + ... + 668129.

It is an arithmetic number, because the mean of its divisors is an integer number (10021140).

Almost surely, 2^72152154 is an apocalyptic number.

72152154 is an abundant number, since it is smaller than the sum of its proper divisors (88186086).

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

72152154 is a wasteful number, since it uses less digits than its factorization.

72152154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336162 (or 1336156 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 72152154 is about 8494.2424029457. The cubic root of 72152154 is about 416.3096075663.

The spelling of 72152154 in words is "seventy-two million, one hundred fifty-two thousand, one hundred fifty-four".