451253133 has 32 divisors (see below), whose sum is σ = 681436800. Its totient is φ = 295083648.

The previous prime is 451253113. The next prime is 451253171. The reversal of 451253133 is 331352154.

It is not a de Polignac number, because 451253133 - 2²¹ = 449155981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 451253097 and 451253106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451253113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314185 + ... + 315617.

It is an arithmetic number, because the mean of its divisors is an integer number (21294900).

Almost surely, 2^451253133 is an apocalyptic number.

It is an amenable number.

451253133 is a deficient number, since it is larger than the sum of its proper divisors (230183667).

451253133 is a wasteful number, since it uses less digits than its factorization.

451253133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1652 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 451253133 is about 21242.7195292881. The cubic root of 451253133 is about 767.0200973051.

The spelling of 451253133 in words is "four hundred fifty-one million, two hundred fifty-three thousand, one hundred thirty-three".