254212421 has 4 divisors (see below), whose sum is σ = 254265312. Its totient is φ = 254159532.

The previous prime is 254212393. The next prime is 254212451. The reversal of 254212421 is 124212452.

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 254212421 - 2²⁶ = 187103557 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 (254212451) 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, 18425 + ... + 29118.

It is an arithmetic number, because the mean of its divisors is an integer number (63566328).

Almost surely, 2^254212421 is an apocalyptic number.

It is an amenable number.

254212421 is a deficient number, since it is larger than the sum of its proper divisors (52891).

254212421 is an equidigital number, since it uses as much as digits as its factorization.

254212421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52890.

The product of its digits is 1280, while the sum is 23.

The square root of 254212421 is about 15944.0402972396. The cubic root of 254212421 is about 633.4790482509.

Adding to 254212421 its reverse (124212452), we get a palindrome (378424873).

The spelling of 254212421 in words is "two hundred fifty-four million, two hundred twelve thousand, four hundred twenty-one".