254312412421 has 4 divisors (see below), whose sum is σ = 257796144172. Its totient is φ = 250828680672.

The previous prime is 254312412413. The next prime is 254312412433. The reversal of 254312412421 is 124214213452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 184066740900 + 70245671521 = 429030^2 + 265039^2 .

It is a cyclic number.

It is not a de Polignac number, because 254312412421 - 2³ = 254312412413 is a prime.

It is a super-2 number, since 2×254312412421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254312412481) 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, 1741865766 + ... + 1741865911.

It is an arithmetic number, because the mean of its divisors is an integer number (64449036043).

Almost surely, 2^254312412421 is an apocalyptic number.

It is an amenable number.

254312412421 is a deficient number, since it is larger than the sum of its proper divisors (3483731751).

254312412421 is an equidigital number, since it uses as much as digits as its factorization.

254312412421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483731750.

The product of its digits is 15360, while the sum is 31.

Adding to 254312412421 its reverse (124214213452), we get a palindrome (378526625873).

The spelling of 254312412421 in words is "two hundred fifty-four billion, three hundred twelve million, four hundred twelve thousand, four hundred twenty-one".