361901 has 2 divisors, whose sum is σ = 361902. Its totient is φ = 361900.

The previous prime is 361877. The next prime is 361903. The reversal of 361901 is 109163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240100 + 121801 = 490^2 + 349^2 .

It is a cyclic number.

It is not a de Polignac number, because 361901 - 2¹⁴ = 345517 is a prime.

It is a Sophie Germain prime.

Together with 361903, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

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 361901.

It is not a weakly prime, because it can be changed into another prime (361903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180950 + 180951.

It is an arithmetic number, because the mean of its divisors is an integer number (180951).

2³⁶¹⁹⁰¹ is an apocalyptic number.

It is an amenable number.

361901 is a deficient number, since it is larger than the sum of its proper divisors (1).

361901 is an equidigital number, since it uses as much as digits as its factorization.

361901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 361901 is about 601.5820808502. The cubic root of 361901 is about 71.2628621491.

The spelling of 361901 in words is "three hundred sixty-one thousand, nine hundred one".