452216181 has 8 divisors (see below), whose sum is σ = 604247904. Its totient is φ = 300830960.

The previous prime is 452216153. The next prime is 452216197. The reversal of 452216181 is 181612254.

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

It is a cyclic number.

It is not a de Polignac number, because 452216181 - 2⁶ = 452216117 is a prime.

It is a super-2 number, since 2×452216181² = 408998948716449522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452214181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159990 + ... + 162791.

It is an arithmetic number, because the mean of its divisors is an integer number (75530988).

Almost surely, 2^452216181 is an apocalyptic number.

It is an amenable number.

452216181 is a deficient number, since it is larger than the sum of its proper divisors (152031723).

452216181 is a wasteful number, since it uses less digits than its factorization.

452216181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323251.

The product of its digits is 3840, while the sum is 30.

The square root of 452216181 is about 21265.3751671585. The cubic root of 452216181 is about 767.5653583814.

The spelling of 452216181 in words is "four hundred fifty-two million, two hundred sixteen thousand, one hundred eighty-one".