254631221 has 8 divisors (see below), whose sum is σ = 274669920. Its totient is φ = 234657072.

The previous prime is 254631211. The next prime is 254631257. The reversal of 254631221 is 122136452.

It is a happy number.

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

It is not a de Polignac number, because 254631221 - 2¹⁴ = 254614837 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 (254631211) 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, 7775 + ... + 23868.

It is an arithmetic number, because the mean of its divisors is an integer number (34333740).

Almost surely, 2^254631221 is an apocalyptic number.

It is an amenable number.

254631221 is a deficient number, since it is larger than the sum of its proper divisors (20038699).

254631221 is a wasteful number, since it uses less digits than its factorization.

254631221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32275.

The product of its digits is 2880, while the sum is 26.

The square root of 254631221 is about 15957.1683264920. The cubic root of 254631221 is about 633.8267305400.

Adding to 254631221 its reverse (122136452), we get a palindrome (376767673).

The spelling of 254631221 in words is "two hundred fifty-four million, six hundred thirty-one thousand, two hundred twenty-one".