451542195 has 80 divisors (see below), whose sum is σ = 879389280. Its totient is φ = 220340736.

The previous prime is 451542193. The next prime is 451542211. The reversal of 451542195 is 591245154.

It is not a de Polignac number, because 451542195 - 2¹ = 451542193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (451542193) 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 79 ways as a sum of consecutive naturals, for example, 731527 + ... + 732143.

It is an arithmetic number, because the mean of its divisors is an integer number (10992366).

Almost surely, 2^451542195 is an apocalyptic number.

451542195 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

451542195 is a deficient number, since it is larger than the sum of its proper divisors (427847085).

451542195 is a wasteful number, since it uses less digits than its factorization.

451542195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 777 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 451542195 is about 21249.5222299232. The cubic root of 451542195 is about 767.1838406101.

The spelling of 451542195 in words is "four hundred fifty-one million, five hundred forty-two thousand, one hundred ninety-five".