254816641 has 4 divisors (see below), whose sum is σ = 255012912. Its totient is φ = 254620372.

The previous prime is 254816629. The next prime is 254816651. The reversal of 254816641 is 146618452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 254816641 - 2¹⁵ = 254783873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254816641.

It is not an unprimeable number, because it can be changed into a prime (254816651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96175 + ... + 98788.

It is an arithmetic number, because the mean of its divisors is an integer number (63753228).

Almost surely, 2^254816641 is an apocalyptic number.

It is an amenable number.

254816641 is a deficient number, since it is larger than the sum of its proper divisors (196271).

254816641 is a wasteful number, since it uses less digits than its factorization.

254816641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196270.

The product of its digits is 46080, while the sum is 37.

The square root of 254816641 is about 15962.9771972524. The cubic root of 254816641 is about 633.9805420493.

The spelling of 254816641 in words is "two hundred fifty-four million, eight hundred sixteen thousand, six hundred forty-one".