654430451 has 4 divisors (see below), whose sum is σ = 655545912. Its totient is φ = 653314992.

The previous prime is 654430411. The next prime is 654430457. The reversal of 654430451 is 154034456.

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

It is a cyclic number.

It is not a de Polignac number, because 654430451 - 2²⁶ = 587321587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654430457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556850 + ... + 558023.

It is an arithmetic number, because the mean of its divisors is an integer number (163886478).

Almost surely, 2^654430451 is an apocalyptic number.

654430451 is a deficient number, since it is larger than the sum of its proper divisors (1115461).

654430451 is a wasteful number, since it uses less digits than its factorization.

654430451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115460.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 654430451 is about 25581.8383037654. The cubic root of 654430451 is about 868.2027684845.

The spelling of 654430451 in words is "six hundred fifty-four million, four hundred thirty thousand, four hundred fifty-one".