254640541 has 4 divisors (see below), whose sum is σ = 262854784. Its totient is φ = 246426300.

The previous prime is 254640523. The next prime is 254640557. The reversal of 254640541 is 145046452.

It is a happy number.

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 254640541 - 2⁵ = 254640509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 8214211 = 254640541 / (2 + 5 + 4 + 6 + 4 + 0 + 5 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254640041) 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, 4107075 + ... + 4107136.

It is an arithmetic number, because the mean of its divisors is an integer number (65713696).

Almost surely, 2^254640541 is an apocalyptic number.

It is an amenable number.

254640541 is a deficient number, since it is larger than the sum of its proper divisors (8214243).

254640541 is an equidigital number, since it uses as much as digits as its factorization.

254640541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8214242.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 254640541 is about 15957.4603555829. The cubic root of 254640541 is about 633.8344635444.

Adding to 254640541 its reverse (145046452), we get a palindrome (399686993).

The spelling of 254640541 in words is "two hundred fifty-four million, six hundred forty thousand, five hundred forty-one".