261932383 has 2 divisors, whose sum is σ = 261932384. Its totient is φ = 261932382.

The previous prime is 261932371. The next prime is 261932389. The reversal of 261932383 is 383239162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 261932383 - 2⁵ = 261932351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261932389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130966191 + 130966192.

It is an arithmetic number, because the mean of its divisors is an integer number (130966192).

Almost surely, 2^261932383 is an apocalyptic number.

261932383 is a deficient number, since it is larger than the sum of its proper divisors (1).

261932383 is an equidigital number, since it uses as much as digits as its factorization.

261932383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 261932383 is about 16184.3252253531. The cubic root of 261932383 is about 639.8277392834.

The spelling of 261932383 in words is "two hundred sixty-one million, nine hundred thirty-two thousand, three hundred eighty-three".