254231261 has 2 divisors, whose sum is σ = 254231262. Its totient is φ = 254231260.

The previous prime is 254231239. The next prime is 254231287. The reversal of 254231261 is 162132452.

It is a happy number.

It is an a-pointer prime, because the next prime (254231287) can be obtained adding 254231261 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213335236 + 40896025 = 14606^2 + 6395^2 .

It is a cyclic number.

It is not a de Polignac number, because 254231261 - 2¹⁰ = 254230237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254231261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254231561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127115630 + 127115631.

It is an arithmetic number, because the mean of its divisors is an integer number (127115631).

Almost surely, 2^254231261 is an apocalyptic number.

It is an amenable number.

254231261 is a deficient number, since it is larger than the sum of its proper divisors (1).

254231261 is an equidigital number, since it uses as much as digits as its factorization.

254231261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 254231261 is about 15944.6311026627. The cubic root of 254231261 is about 633.4946971721.

The spelling of 254231261 in words is "two hundred fifty-four million, two hundred thirty-one thousand, two hundred sixty-one".