452187121 has 4 divisors (see below), whose sum is σ = 453217600. Its totient is φ = 451156644.

The previous prime is 452187079. The next prime is 452187139. The reversal of 452187121 is 121781254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 452187121 - 2⁷ = 452186993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (452187181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514581 + ... + 515458.

It is an arithmetic number, because the mean of its divisors is an integer number (113304400).

Almost surely, 2^452187121 is an apocalyptic number.

It is an amenable number.

452187121 is a deficient number, since it is larger than the sum of its proper divisors (1030479).

452187121 is a wasteful number, since it uses less digits than its factorization.

452187121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030478.

The product of its digits is 4480, while the sum is 31.

The square root of 452187121 is about 21264.6918858468. The cubic root of 452187121 is about 767.5489164464.

The spelling of 452187121 in words is "four hundred fifty-two million, one hundred eighty-seven thousand, one hundred twenty-one".