261036043 has 2 divisors, whose sum is σ = 261036044. Its totient is φ = 261036042.

The previous prime is 261036011. The next prime is 261036091. The reversal of 261036043 is 340630162.

261036043 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 261036043 - 2⁵ = 261036011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 261035999 and 261036017.

It is not a weakly prime, because it can be changed into another prime (261030043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130518021 + 130518022.

It is an arithmetic number, because the mean of its divisors is an integer number (130518022).

Almost surely, 2^261036043 is an apocalyptic number.

261036043 is a deficient number, since it is larger than the sum of its proper divisors (1).

261036043 is an equidigital number, since it uses as much as digits as its factorization.

261036043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 261036043 is about 16156.6098857403. The cubic root of 261036043 is about 639.0970690024.

The spelling of 261036043 in words is "two hundred sixty-one million, thirty-six thousand, forty-three".