451995155 has 8 divisors (see below), whose sum is σ = 542617152. Its totient is φ = 361447488.

The previous prime is 451995151. The next prime is 451995239. The reversal of 451995155 is 551599154.

It is a happy number.

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 451995155 - 2² = 451995151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451995151) 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, 4187 + ... + 30356.

It is an arithmetic number, because the mean of its divisors is an integer number (67827144).

Almost surely, 2^451995155 is an apocalyptic number.

451995155 is a deficient number, since it is larger than the sum of its proper divisors (90621997).

451995155 is a wasteful number, since it uses less digits than its factorization.

451995155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37165.

The product of its digits is 202500, while the sum is 44.

The square root of 451995155 is about 21260.1776803488. The cubic root of 451995155 is about 767.4402857905.

The spelling of 451995155 in words is "four hundred fifty-one million, nine hundred ninety-five thousand, one hundred fifty-five".