254121407 has 4 divisors (see below), whose sum is σ = 254355000. Its totient is φ = 253887816.

The previous prime is 254121391. The next prime is 254121463. The reversal of 254121407 is 704121452.

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 254121407 - 2⁴ = 254121391 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 (254121487) 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, 115157 + ... + 117342.

It is an arithmetic number, because the mean of its divisors is an integer number (63588750).

Almost surely, 2^254121407 is an apocalyptic number.

254121407 is a deficient number, since it is larger than the sum of its proper divisors (233593).

254121407 is a wasteful number, since it uses less digits than its factorization.

254121407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233592.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 254121407 is about 15941.1858718227. The cubic root of 254121407 is about 633.4034391154.

Adding to 254121407 its reverse (704121452), we get a palindrome (958242859).

The spelling of 254121407 in words is "two hundred fifty-four million, one hundred twenty-one thousand, four hundred seven".