361489 has 4 divisors (see below), whose sum is σ = 363556. Its totient is φ = 359424.

The previous prime is 361481. The next prime is 361499. The reversal of 361489 is 984163.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40000 + 321489 = 200^2 + 567^2 .

It is a cyclic number.

It is not a de Polignac number, because 361489 - 2³ = 361481 is a prime.

It is an Ulam 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 361489.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361481) 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, 744 + ... + 1129.

It is an arithmetic number, because the mean of its divisors is an integer number (90889).

2³⁶¹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

361489 is a deficient number, since it is larger than the sum of its proper divisors (2067).

361489 is a wasteful number, since it uses less digits than its factorization.

361489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066.

The product of its digits is 5184, while the sum is 31.

The square root of 361489 is about 601.2395529238. The cubic root of 361489 is about 71.2358092186.

The spelling of 361489 in words is "three hundred sixty-one thousand, four hundred eighty-nine".