361939 has 4 divisors (see below), whose sum is σ = 365256. Its totient is φ = 358624.

The previous prime is 361927. The next prime is 361943. The reversal of 361939 is 939163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939163 = 43 ⋅21841.

It is a cyclic number.

It is not a de Polignac number, because 361939 - 2¹³ = 353747 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 361939.

It is not an unprimeable number, because it can be changed into a prime (361909) 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, 1489 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (91314).

2³⁶¹⁹³⁹ is an apocalyptic number.

361939 is a deficient number, since it is larger than the sum of its proper divisors (3317).

361939 is a wasteful number, since it uses less digits than its factorization.

361939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316.

The product of its digits is 4374, while the sum is 31.

The square root of 361939 is about 601.6136634087. The cubic root of 361939 is about 71.2653562879.

It can be divided in two parts, 3619 and 39, that multiplied together give a palindrome (141141).

The spelling of 361939 in words is "three hundred sixty-one thousand, nine hundred thirty-nine".