451234609 has 8 divisors (see below), whose sum is σ = 519634368. Its totient is φ = 383819280.

The previous prime is 451234541. The next prime is 451234613. The reversal of 451234609 is 906432154.

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 451234609 - 2¹⁵ = 451201841 is a prime.

It is a super-2 number, since 2×451234609² = 407225344718765762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451234669) 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, 245122 + ... + 246955.

It is an arithmetic number, because the mean of its divisors is an integer number (64954296).

Almost surely, 2^451234609 is an apocalyptic number.

It is an amenable number.

451234609 is a deficient number, since it is larger than the sum of its proper divisors (68399759).

451234609 is a wasteful number, since it uses less digits than its factorization.

451234609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492215.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 451234609 is about 21242.2835166090. The cubic root of 451234609 is about 767.0096017365.

The spelling of 451234609 in words is "four hundred fifty-one million, two hundred thirty-four thousand, six hundred nine".