72233151 has 4 divisors (see below), whose sum is σ = 96310872. Its totient is φ = 48155432.

The previous prime is 72233141. The next prime is 72233159. The reversal of 72233151 is 15133227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15133227 = 3 ⋅5044409.

It is a cyclic number.

It is not a de Polignac number, because 72233151 - 2⁹ = 72232639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72233159) 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, 12038856 + ... + 12038861.

It is an arithmetic number, because the mean of its divisors is an integer number (24077718).

Almost surely, 2^72233151 is an apocalyptic number.

72233151 is a deficient number, since it is larger than the sum of its proper divisors (24077721).

72233151 is a wasteful number, since it uses less digits than its factorization.

72233151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24077720.

The product of its digits is 1260, while the sum is 24.

The square root of 72233151 is about 8499.0088245630. The cubic root of 72233151 is about 416.4653304264.

Adding to 72233151 its reverse (15133227), we get a palindrome (87366378).

The spelling of 72233151 in words is "seventy-two million, two hundred thirty-three thousand, one hundred fifty-one".