361803 has 8 divisors (see below), whose sum is σ = 519568. Its totient is φ = 222624.

The previous prime is 361799. The next prime is 361807. The reversal of 361803 is 308163.

It is an interprime number because it is at equal distance from previous prime (361799) and next prime (361807).

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

It is not a de Polignac number, because 361803 - 2² = 361799 is a prime.

It is the 602-nd Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 361803.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361803.

It is not an unprimeable number, because it can be changed into a prime (361807) by changing a digit.

It is a nontrivial repunit in base 601.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4600 + ... + 4677.

It is an arithmetic number, because the mean of its divisors is an integer number (64946).

2³⁶¹⁸⁰³ is an apocalyptic number.

361803 is a deficient number, since it is larger than the sum of its proper divisors (157765).

361803 is a wasteful number, since it uses less digits than its factorization.

361803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9293.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 361803 is about 601.5006234411. The cubic root of 361803 is about 71.2564290905.

Adding to 361803 its reverse (308163), we get a palindrome (669966).

The spelling of 361803 in words is "three hundred sixty-one thousand, eight hundred three".