361649165 has 8 divisors (see below), whose sum is σ = 434547960. Its totient is φ = 288940032.

The previous prime is 361649153. The next prime is 361649203. The reversal of 361649165 is 561946163.

It can be written as a sum of positive squares in 4 ways, for example, as 1674436 + 359974729 = 1294^2 + 18973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 361649165 - 2¹⁸ = 361387021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43184 + ... + 50873.

It is an arithmetic number, because the mean of its divisors is an integer number (54318495).

Almost surely, 2^361649165 is an apocalyptic number.

It is an amenable number.

361649165 is a deficient number, since it is larger than the sum of its proper divisors (72898795).

361649165 is an equidigital number, since it uses as much as digits as its factorization.

361649165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94831.

The product of its digits is 116640, while the sum is 41.

The square root of 361649165 is about 19017.0756164033. The cubic root of 361649165 is about 712.4632848630.

The spelling of 361649165 in words is "three hundred sixty-one million, six hundred forty-nine thousand, one hundred sixty-five".