254213081 has 2 divisors, whose sum is σ = 254213082. Its totient is φ = 254213080.

The previous prime is 254213023. The next prime is 254213107. The reversal of 254213081 is 180312452.

It is an a-pointer prime, because the next prime (254213107) can be obtained adding 254213081 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176491225 + 77721856 = 13285^2 + 8816^2 .

It is a cyclic number.

It is not a de Polignac number, because 254213081 - 2⁶ = 254213017 is a prime.

It is a super-2 number, since 2×254213081² = 129248581103025122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 254213081.

It is not a weakly prime, because it can be changed into another prime (254213381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127106540 + 127106541.

It is an arithmetic number, because the mean of its divisors is an integer number (127106541).

Almost surely, 2^254213081 is an apocalyptic number.

It is an amenable number.

254213081 is a deficient number, since it is larger than the sum of its proper divisors (1).

254213081 is an equidigital number, since it uses as much as digits as its factorization.

254213081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 254213081 is about 15944.0609946149. The cubic root of 254213081 is about 633.4795964746.

The spelling of 254213081 in words is "two hundred fifty-four million, two hundred thirteen thousand, eighty-one".