654942641 has 16 divisors (see below), whose sum is σ = 716722560. Its totient is φ = 596534400.

The previous prime is 654942637. The next prime is 654942643. The reversal of 654942641 is 146249456.

It is a cyclic number.

It is not a de Polignac number, because 654942641 - 2² = 654942637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654942643) 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 15 ways as a sum of consecutive naturals, for example, 41966 + ... + 55416.

It is an arithmetic number, because the mean of its divisors is an integer number (44795160).

Almost surely, 2^654942641 is an apocalyptic number.

It is an amenable number.

654942641 is a deficient number, since it is larger than the sum of its proper divisors (61779919).

654942641 is a wasteful number, since it uses less digits than its factorization.

654942641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13576.

The product of its digits is 207360, while the sum is 41.

The square root of 654942641 is about 25591.8471588121. The cubic root of 654942641 is about 868.4292090558.

The spelling of 654942641 in words is "six hundred fifty-four million, nine hundred forty-two thousand, six hundred forty-one".