261114253 has 2 divisors, whose sum is σ = 261114254. Its totient is φ = 261114252.

The previous prime is 261114247. The next prime is 261114277. The reversal of 261114253 is 352411162.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236482884 + 24631369 = 15378^2 + 4963^2 .

It is a cyclic number.

It is not a de Polignac number, because 261114253 - 2¹⁷ = 260983181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261114233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130557126 + 130557127.

It is an arithmetic number, because the mean of its divisors is an integer number (130557127).

Almost surely, 2^261114253 is an apocalyptic number.

It is an amenable number.

261114253 is a deficient number, since it is larger than the sum of its proper divisors (1).

261114253 is an equidigital number, since it uses as much as digits as its factorization.

261114253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 261114253 is about 16159.0300760906. The cubic root of 261114253 is about 639.1608900621.

The spelling of 261114253 in words is "two hundred sixty-one million, one hundred fourteen thousand, two hundred fifty-three".