254243621 has 8 divisors (see below), whose sum is σ = 256608000. Its totient is φ = 251885920.

The previous prime is 254243611. The next prime is 254243657. The reversal of 254243621 is 126342452.

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

It is a cyclic number.

It is not a de Polignac number, because 254243621 - 2¹⁸ = 253981477 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 (254243611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104780 + ... + 107178.

It is an arithmetic number, because the mean of its divisors is an integer number (32076000).

Almost surely, 2^254243621 is an apocalyptic number.

It is an amenable number.

254243621 is a deficient number, since it is larger than the sum of its proper divisors (2364379).

254243621 is a wasteful number, since it uses less digits than its factorization.

254243621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339.

The product of its digits is 11520, while the sum is 29.

The square root of 254243621 is about 15945.0186892333. The cubic root of 254243621 is about 633.5049632419.

The spelling of 254243621 in words is "two hundred fifty-four million, two hundred forty-three thousand, six hundred twenty-one".