654704451 has 24 divisors (see below), whose sum is σ = 1032333120. Its totient is φ = 413494632.

The previous prime is 654704447. The next prime is 654704461. The reversal of 654704451 is 154407456.

It is not a de Polignac number, because 654704451 - 2² = 654704447 is a prime.

It is a super-2 number, since 2×654704451² = 857275836318422802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (654704461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66285 + ... + 75518.

It is an arithmetic number, because the mean of its divisors is an integer number (43013880).

Almost surely, 2^654704451 is an apocalyptic number.

654704451 is a deficient number, since it is larger than the sum of its proper divisors (377628669).

654704451 is a wasteful number, since it uses less digits than its factorization.

654704451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141837 (or 141825 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 654704451 is about 25587.1931051454. The cubic root of 654704451 is about 868.3239193091.

The spelling of 654704451 in words is "six hundred fifty-four million, seven hundred four thousand, four hundred fifty-one".