72330158 has 4 divisors (see below), whose sum is σ = 108495240. Its totient is φ = 36165078.

The previous prime is 72330157. The next prime is 72330163. The reversal of 72330158 is 85103327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85103327 = 73 ⋅1165799.

It is a self number, because there is not a number n which added to its sum of digits gives 72330158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72330151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18082538 + ... + 18082541.

It is an arithmetic number, because the mean of its divisors is an integer number (27123810).

Almost surely, 2^72330158 is an apocalyptic number.

72330158 is a deficient number, since it is larger than the sum of its proper divisors (36165082).

72330158 is a wasteful number, since it uses less digits than its factorization.

72330158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36165081.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 72330158 is about 8504.7138693786. The cubic root of 72330158 is about 416.6516805988.

The spelling of 72330158 in words is "seventy-two million, three hundred thirty thousand, one hundred fifty-eight".