451228653 has 24 divisors (see below), whose sum is σ = 690999296. Its totient is φ = 283240800.

The previous prime is 451228633. The next prime is 451228667. The reversal of 451228653 is 356822154.

It is not a de Polignac number, because 451228653 - 2¹⁰ = 451227629 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451228633) 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, 11533 + ... + 32178.

Almost surely, 2^451228653 is an apocalyptic number.

It is an amenable number.

451228653 is a deficient number, since it is larger than the sum of its proper divisors (239770643).

451228653 is a wasteful number, since it uses less digits than its factorization.

451228653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43785 (or 43782 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 451228653 is about 21242.1433240622. The cubic root of 451228653 is about 767.0062270476.

The spelling of 451228653 in words is "four hundred fifty-one million, two hundred twenty-eight thousand, six hundred fifty-three".