452161111 has 4 divisors (see below), whose sum is σ = 452228392. Its totient is φ = 452093832.

The previous prime is 452161093. The next prime is 452161147. The reversal of 452161111 is 111161254.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 452161111 - 2¹¹ = 452159063 is a prime.

It is a super-3 number, since 3×452161111³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452168111) 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, 22281 + ... + 37426.

It is an arithmetic number, because the mean of its divisors is an integer number (113057098).

Almost surely, 2^452161111 is an apocalyptic number.

452161111 is a deficient number, since it is larger than the sum of its proper divisors (67281).

452161111 is an equidigital number, since it uses as much as digits as its factorization.

452161111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67280.

The product of its digits is 240, while the sum is 22.

The square root of 452161111 is about 21264.0802998860. The cubic root of 452161111 is about 767.5341995816.

The spelling of 452161111 in words is "four hundred fifty-two million, one hundred sixty-one thousand, one hundred eleven".