72150242 has 8 divisors (see below), whose sum is σ = 110865132. Its totient is φ = 35195200.

The previous prime is 72150233. The next prime is 72150263. The reversal of 72150242 is 24205127.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57320041 + 14830201 = 7571^2 + 3851^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 439859 + ... + 440022.

Almost surely, 2^72150242 is an apocalyptic number.

72150242 is a deficient number, since it is larger than the sum of its proper divisors (38714890).

72150242 is a wasteful number, since it uses less digits than its factorization.

72150242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879924.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 72150242 is about 8494.1298553766. The cubic root of 72150242 is about 416.3059301940.

Adding to 72150242 its reverse (24205127), we get a palindrome (96355369).

The spelling of 72150242 in words is "seventy-two million, one hundred fifty thousand, two hundred forty-two".