254272241581 has 2 divisors, whose sum is σ = 254272241582. Its totient is φ = 254272241580.

The previous prime is 254272241579. The next prime is 254272241653. The reversal of 254272241581 is 185142272452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158750449225 + 95521792356 = 398435^2 + 309066^2 .

It is a cyclic number.

It is not a de Polignac number, because 254272241581 - 2¹ = 254272241579 is a prime.

It is a super-2 number, since 2×254272241581² (a number of 24 digits) contains 22 as substring.

Together with 254272241579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254272241081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127136120790 + 127136120791.

It is an arithmetic number, because the mean of its divisors is an integer number (127136120791).

Almost surely, 2^254272241581 is an apocalyptic number.

It is an amenable number.

254272241581 is a deficient number, since it is larger than the sum of its proper divisors (1).

254272241581 is an equidigital number, since it uses as much as digits as its factorization.

254272241581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 358400, while the sum is 43.

The spelling of 254272241581 in words is "two hundred fifty-four billion, two hundred seventy-two million, two hundred forty-one thousand, five hundred eighty-one".