451125251 has 4 divisors (see below), whose sum is σ = 451196592. Its totient is φ = 451053912.

The previous prime is 451125221. The next prime is 451125253. The reversal of 451125251 is 152521154.

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 451125251 - 2¹⁰ = 451124227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 451125251.

It is not an unprimeable number, because it can be changed into a prime (451125253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25151 + ... + 39176.

It is an arithmetic number, because the mean of its divisors is an integer number (112799148).

Almost surely, 2^451125251 is an apocalyptic number.

451125251 is a deficient number, since it is larger than the sum of its proper divisors (71341).

451125251 is an equidigital number, since it uses as much as digits as its factorization.

451125251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71340.

The product of its digits is 2000, while the sum is 26.

The square root of 451125251 is about 21239.7092965040. The cubic root of 451125251 is about 766.9476344056.

The spelling of 451125251 in words is "four hundred fifty-one million, one hundred twenty-five thousand, two hundred fifty-one".