261760043 has 2 divisors, whose sum is σ = 261760044. Its totient is φ = 261760042.

The previous prime is 261760027. The next prime is 261760069. The reversal of 261760043 is 340067162.

261760043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 261760043 - 2⁴ = 261760027 is a prime.

It is a super-2 number, since 2×261760043² = 137036640222723698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 261759988 and 261760015.

It is not a weakly prime, because it can be changed into another prime (261760013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130880021 + 130880022.

It is an arithmetic number, because the mean of its divisors is an integer number (130880022).

Almost surely, 2^261760043 is an apocalyptic number.

261760043 is a deficient number, since it is larger than the sum of its proper divisors (1).

261760043 is an equidigital number, since it uses as much as digits as its factorization.

261760043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 261760043 is about 16179.0000618085. Note that the first 4 decimals coincide. The cubic root of 261760043 is about 639.6873823155.

The spelling of 261760043 in words is "two hundred sixty-one million, seven hundred sixty thousand, forty-three".