361009 has 8 divisors (see below), whose sum is σ = 404928. Its totient is φ = 318960.

The previous prime is 361003. The next prime is 361013. The reversal of 361009 is 900163.

361009 = 30² + 31² + ... + 103².

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 361009 - 2³ = 361001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (361001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37 + ... + 850.

It is an arithmetic number, because the mean of its divisors is an integer number (50616).

2³⁶¹⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

361009 is a deficient number, since it is larger than the sum of its proper divisors (43919).

361009 is a wasteful number, since it uses less digits than its factorization.

361009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 361009 is about 600.8402449903. The cubic root of 361009 is about 71.2042653044.

It can be divided in two parts, 36100 and 9, that multiplied together give a square (324900 = 570²).

The spelling of 361009 in words is "three hundred sixty-one thousand, nine".