654001061 has 8 divisors (see below), whose sum is σ = 764812224. Its totient is φ = 547535520.

The previous prime is 654001057. The next prime is 654001121. The reversal of 654001061 is 160100456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 654001061 - 2² = 654001057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654001031) 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 7 ways as a sum of consecutive naturals, for example, 1086080 + ... + 1086681.

It is an arithmetic number, because the mean of its divisors is an integer number (95601528).

Almost surely, 2^654001061 is an apocalyptic number.

It is an amenable number.

654001061 is a deficient number, since it is larger than the sum of its proper divisors (110811163).

654001061 is a wasteful number, since it uses less digits than its factorization.

654001061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172811.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 654001061 is about 25573.4444492720. Note that the first 5 decimals coincide. The cubic root of 654001061 is about 868.0128429545.

The spelling of 654001061 in words is "six hundred fifty-four million, one thousand, sixty-one".