361539 has 18 divisors (see below), whose sum is σ = 558740. Its totient is φ = 225216.

The previous prime is 361531. The next prime is 361541. The reversal of 361539 is 935163.

It is not a de Polignac number, because 361539 - 2³ = 361531 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361539.

It is not an unprimeable number, because it can be changed into a prime (361531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2532 + ... + 2670.

2³⁶¹⁵³⁹ is an apocalyptic number.

361539 is a deficient number, since it is larger than the sum of its proper divisors (197201).

361539 is a wasteful number, since it uses less digits than its factorization.

361539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 159 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 361539 is about 601.2811322501. The cubic root of 361539 is about 71.2390934368.

It can be divided in two parts, 361 and 539, that added together give a square (900 = 30²).

The spelling of 361539 in words is "three hundred sixty-one thousand, five hundred thirty-nine".