361741865 has 4 divisors (see below), whose sum is σ = 434090244. Its totient is φ = 289393488.

The previous prime is 361741829. The next prime is 361741879. The reversal of 361741865 is 568147163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 568147163 = 113 ⋅5027851.

It can be written as a sum of positive squares in 2 ways, for example, as 93470224 + 268271641 = 9668^2 + 16379^2 .

It is a cyclic number.

It is not a de Polignac number, because 361741865 - 2¹² = 361737769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36174182 + ... + 36174191.

It is an arithmetic number, because the mean of its divisors is an integer number (108522561).

Almost surely, 2^361741865 is an apocalyptic number.

It is an amenable number.

361741865 is a deficient number, since it is larger than the sum of its proper divisors (72348379).

361741865 is an equidigital number, since it uses as much as digits as its factorization.

361741865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72348378.

The product of its digits is 120960, while the sum is 41.

The square root of 361741865 is about 19019.5127434958. The cubic root of 361741865 is about 712.5241538954.

The spelling of 361741865 in words is "three hundred sixty-one million, seven hundred forty-one thousand, eight hundred sixty-five".