361871 has 2 divisors, whose sum is σ = 361872. Its totient is φ = 361870.

The previous prime is 361843. The next prime is 361873. The reversal of 361871 is 178163.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 361871 - 2⁶ = 361807 is a prime.

Together with 361873, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 361871.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361871.

It is not a weakly prime, because it can be changed into another prime (361873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180935 + 180936.

It is an arithmetic number, because the mean of its divisors is an integer number (180936).

2³⁶¹⁸⁷¹ is an apocalyptic number.

361871 is a deficient number, since it is larger than the sum of its proper divisors (1).

361871 is an equidigital number, since it uses as much as digits as its factorization.

361871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 26.

The square root of 361871 is about 601.5571460801. The cubic root of 361871 is about 71.2608929688.

The spelling of 361871 in words is "three hundred sixty-one thousand, eight hundred seventy-one".