72241355 has 4 divisors (see below), whose sum is σ = 86689632. Its totient is φ = 57793080.

The previous prime is 72241331. The next prime is 72241451. The reversal of 72241355 is 55314227.

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: 55314227 = 2879 ⋅19213.

It is not a de Polignac number, because 72241355 - 2¹⁸ = 71979211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7224131 + ... + 7224140.

It is an arithmetic number, because the mean of its divisors is an integer number (21672408).

Almost surely, 2^72241355 is an apocalyptic number.

72241355 is a deficient number, since it is larger than the sum of its proper divisors (14448277).

72241355 is a wasteful number, since it uses less digits than its factorization.

72241355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14448276.

The product of its digits is 8400, while the sum is 29.

The square root of 72241355 is about 8499.4914553754. The cubic root of 72241355 is about 416.4810967432.

The spelling of 72241355 in words is "seventy-two million, two hundred forty-one thousand, three hundred fifty-five".