361405 has 8 divisors (see below), whose sum is σ = 473184. Its totient is φ = 262800.

The previous prime is 361373. The next prime is 361409. The reversal of 361405 is 504163.

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

It is not a de Polignac number, because 361405 - 2⁵ = 361373 is a prime.

It is a super-2 number, since 2×361405² = 261227148050, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3231 + ... + 3340.

It is an arithmetic number, because the mean of its divisors is an integer number (59148).

2³⁶¹⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

361405 is a deficient number, since it is larger than the sum of its proper divisors (111779).

361405 is a wasteful number, since it uses less digits than its factorization.

361405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6587.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 361405 is about 601.1696931816. The cubic root of 361405 is about 71.2302910502.

Adding to 361405 its reverse (504163), we get a palindrome (865568).

It can be divided in two parts, 36 and 1405, that added together give a palindrome (1441).

The spelling of 361405 in words is "three hundred sixty-one thousand, four hundred five".