361289 has 4 divisors (see below), whose sum is σ = 369024. Its totient is φ = 353556.

The previous prime is 361279. The next prime is 361313. The reversal of 361289 is 982163.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 361289 - 2⁸ = 361033 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3797 + ... + 3890.

It is an arithmetic number, because the mean of its divisors is an integer number (92256).

2³⁶¹²⁸⁹ is an apocalyptic number.

It is an amenable number.

361289 is a deficient number, since it is larger than the sum of its proper divisors (7735).

361289 is an equidigital number, since it uses as much as digits as its factorization.

361289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734.

The product of its digits is 2592, while the sum is 29.

The square root of 361289 is about 601.0732068559. The cubic root of 361289 is about 71.2226693165. Note that the first 3 decimals are identical.

It can be divided in two parts, 361 and 289, that multiplied together give a square (104329 = 323²).

The spelling of 361289 in words is "three hundred sixty-one thousand, two hundred eighty-nine".