452216155 has 4 divisors (see below), whose sum is σ = 542659392. Its totient is φ = 361772920.

The previous prime is 452216153. The next prime is 452216197. The reversal of 452216155 is 551612254.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 452216155 - 2¹ = 452216153 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (452216153) 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, 45221611 + ... + 45221620.

It is an arithmetic number, because the mean of its divisors is an integer number (135664848).

Almost surely, 2^452216155 is an apocalyptic number.

452216155 is a deficient number, since it is larger than the sum of its proper divisors (90443237).

452216155 is an equidigital number, since it uses as much as digits as its factorization.

452216155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90443236.

The product of its digits is 12000, while the sum is 31.

The square root of 452216155 is about 21265.3745558361. The cubic root of 452216155 is about 767.5653436711.

The spelling of 452216155 in words is "four hundred fifty-two million, two hundred sixteen thousand, one hundred fifty-five".