261114943 has 4 divisors (see below), whose sum is σ = 265540680. Its totient is φ = 256689208.

The previous prime is 261114923. The next prime is 261114949. The reversal of 261114943 is 349411162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349411162 = 2 ⋅174705581.

It is a cyclic number.

It is not a de Polignac number, because 261114943 - 2¹⁷ = 260983871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261114949) 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, 2212780 + ... + 2212897.

It is an arithmetic number, because the mean of its divisors is an integer number (66385170).

Almost surely, 2^261114943 is an apocalyptic number.

261114943 is a deficient number, since it is larger than the sum of its proper divisors (4425737).

261114943 is an equidigital number, since it uses as much as digits as its factorization.

261114943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4425736.

The product of its digits is 5184, while the sum is 31.

The square root of 261114943 is about 16159.0514263678. The cubic root of 261114943 is about 639.1614530604.

The spelling of 261114943 in words is "two hundred sixty-one million, one hundred fourteen thousand, nine hundred forty-three".