451125081 has 24 divisors (see below), whose sum is σ = 711936576. Its totient is φ = 272996640.

The previous prime is 451125079. The next prime is 451125089. The reversal of 451125081 is 180521154.

451125081 is a `hidden beast` number, since 45 + 112 + 508 + 1 = 666.

It is not a de Polignac number, because 451125081 - 2¹ = 451125079 is a prime.

It is a super-2 number, since 2×451125081² = 407027677414513122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (451125089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70491 + ... + 76623.

It is an arithmetic number, because the mean of its divisors is an integer number (29664024).

Almost surely, 2^451125081 is an apocalyptic number.

It is an amenable number.

451125081 is a deficient number, since it is larger than the sum of its proper divisors (260811495).

451125081 is a wasteful number, since it uses less digits than its factorization.

451125081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6893 (or 6890 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 451125081 is about 21239.7052945656. The cubic root of 451125081 is about 766.9475380679.

It can be divided in two parts, 4511 and 25081, that added together give a palindrome (29592).

The spelling of 451125081 in words is "four hundred fifty-one million, one hundred twenty-five thousand, eighty-one".