261702043 has 2 divisors, whose sum is σ = 261702044. Its totient is φ = 261702042.

The previous prime is 261702041. The next prime is 261702079. The reversal of 261702043 is 340207162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 261702043 - 2¹ = 261702041 is a prime.

Together with 261702041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 261701999 and 261702017.

It is not a weakly prime, because it can be changed into another prime (261702041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130851021 + 130851022.

It is an arithmetic number, because the mean of its divisors is an integer number (130851022).

Almost surely, 2^261702043 is an apocalyptic number.

261702043 is a deficient number, since it is larger than the sum of its proper divisors (1).

261702043 is an equidigital number, since it uses as much as digits as its factorization.

261702043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 261702043 is about 16177.2075155139. The cubic root of 261702043 is about 639.6401321592.

The spelling of 261702043 in words is "two hundred sixty-one million, seven hundred two thousand, forty-three".