361005 has 16 divisors (see below), whose sum is σ = 592704. Its totient is φ = 187520.

The previous prime is 361003. The next prime is 361013. The reversal of 361005 is 500163.

It is not a de Polignac number, because 361005 - 2¹ = 361003 is a prime.

It is a super-2 number, since 2×361005² = 260649220050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a Curzon number.

361005 is a lucky number.

It is a congruent number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322 + ... + 908.

It is an arithmetic number, because the mean of its divisors is an integer number (37044).

2³⁶¹⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

361005 is a deficient number, since it is larger than the sum of its proper divisors (231699).

361005 is a wasteful number, since it uses less digits than its factorization.

361005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 361005 is about 600.8369163092. The cubic root of 361005 is about 71.2040023210.

Adding to 361005 its reverse (500163), we get a palindrome (861168).

The spelling of 361005 in words is "three hundred sixty-one thousand, five".