654451 has 4 divisors (see below), whose sum is σ = 747952. Its totient is φ = 560952.

The previous prime is 654439. The next prime is 654491. The reversal of 654451 is 154456.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 654451 - 2⁷ = 654323 is a prime.

It is a super-2 number, since 2×654451² = 856612222802, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (654421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46740 + ... + 46753.

It is an arithmetic number, because the mean of its divisors is an integer number (186988).

2⁶⁵⁴⁴⁵¹ is an apocalyptic number.

654451 is a deficient number, since it is larger than the sum of its proper divisors (93501).

654451 is an equidigital number, since it uses as much as digits as its factorization.

654451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93500.

The product of its digits is 2400, while the sum is 25.

The square root of 654451 is about 808.9814583784. The cubic root of 654451 is about 86.8211855527.

The spelling of 654451 in words is "six hundred fifty-four thousand, four hundred fifty-one".