254242451 has 4 divisors (see below), whose sum is σ = 254336400. Its totient is φ = 254148504.

The previous prime is 254242433. The next prime is 254242481. The reversal of 254242451 is 154242452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254242451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254242481) 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 3 ways as a sum of consecutive naturals, for example, 42791 + ... + 48368.

It is an arithmetic number, because the mean of its divisors is an integer number (63584100).

Almost surely, 2^254242451 is an apocalyptic number.

254242451 is a deficient number, since it is larger than the sum of its proper divisors (93949).

254242451 is an equidigital number, since it uses as much as digits as its factorization.

254242451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93948.

The product of its digits is 12800, while the sum is 29.

The square root of 254242451 is about 15944.9820006170. The cubic root of 254242451 is about 633.5039914680.

Subtracting from 254242451 its reverse (154242452), we obtain a palindrome (99999999).

The spelling of 254242451 in words is "two hundred fifty-four million, two hundred forty-two thousand, four hundred fifty-one".