254121451 has 4 divisors (see below), whose sum is σ = 254250952. Its totient is φ = 253991952.

The previous prime is 254121391. The next prime is 254121463. The reversal of 254121451 is 154121452.

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

It is a cyclic number.

It is not a de Polignac number, because 254121451 - 2⁷ = 254121323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254121481) 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, 61761 + ... + 65746.

It is an arithmetic number, because the mean of its divisors is an integer number (63562738).

Almost surely, 2^254121451 is an apocalyptic number.

254121451 is a deficient number, since it is larger than the sum of its proper divisors (129501).

254121451 is a wasteful number, since it uses less digits than its factorization.

254121451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129500.

The product of its digits is 1600, while the sum is 25.

The square root of 254121451 is about 15941.1872518956. The cubic root of 254121451 is about 633.4034756724.

Subtracting from 254121451 its reverse (154121452), we obtain a palindrome (99999999).

The spelling of 254121451 in words is "two hundred fifty-four million, one hundred twenty-one thousand, four hundred fifty-one".