254638541 has 4 divisors (see below), whose sum is σ = 254689212. Its totient is φ = 254587872.

The previous prime is 254638537. The next prime is 254638661. The reversal of 254638541 is 145836452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14853316 + 239785225 = 3854^2 + 15485^2 .

It is a cyclic number.

It is not a de Polignac number, because 254638541 - 2² = 254638537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254638495 and 254638504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254638511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16850 + ... + 28163.

It is an arithmetic number, because the mean of its divisors is an integer number (63672303).

Almost surely, 2^254638541 is an apocalyptic number.

It is an amenable number.

254638541 is a deficient number, since it is larger than the sum of its proper divisors (50671).

254638541 is an equidigital number, since it uses as much as digits as its factorization.

254638541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50670.

The product of its digits is 115200, while the sum is 38.

The square root of 254638541 is about 15957.3976888464. The cubic root of 254638541 is about 633.8328041173.

The spelling of 254638541 in words is "two hundred fifty-four million, six hundred thirty-eight thousand, five hundred forty-one".