72150878 has 8 divisors (see below), whose sum is σ = 108292368. Its totient is φ = 36053424.

The previous prime is 72150877. The next prime is 72150887. The reversal of 72150878 is 87805127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72150877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6551 + ... + 13682.

It is an arithmetic number, because the mean of its divisors is an integer number (13536546).

Almost surely, 2^72150878 is an apocalyptic number.

72150878 is a deficient number, since it is larger than the sum of its proper divisors (36141490).

72150878 is a wasteful number, since it uses less digits than its factorization.

72150878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22018.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 72150878 is about 8494.1672929134. The cubic root of 72150878 is about 416.3071534275.

The spelling of 72150878 in words is "seventy-two million, one hundred fifty thousand, eight hundred seventy-eight".