72234115 has 4 divisors (see below), whose sum is σ = 86680944. Its totient is φ = 57787288.

The previous prime is 72234103. The next prime is 72234131. The reversal of 72234115 is 51143227.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51143227 = 89 ⋅574643.

It is a cyclic number.

It is not a de Polignac number, because 72234115 - 2¹¹ = 72232067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72234115.

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 3 ways as a sum of consecutive naturals, for example, 7223407 + ... + 7223416.

It is an arithmetic number, because the mean of its divisors is an integer number (21670236).

Almost surely, 2^72234115 is an apocalyptic number.

72234115 is a deficient number, since it is larger than the sum of its proper divisors (14446829).

72234115 is a wasteful number, since it uses less digits than its factorization.

72234115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14446828.

The product of its digits is 1680, while the sum is 25.

The square root of 72234115 is about 8499.0655368693. The cubic root of 72234115 is about 416.4671830881.

The spelling of 72234115 in words is "seventy-two million, two hundred thirty-four thousand, one hundred fifteen".