45231 has 4 divisors (see below), whose sum is σ = 60312. Its totient is φ = 30152.

The previous prime is 45197. The next prime is 45233. The reversal of 45231 is 13254.

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

It is a cyclic number.

It is not a de Polignac number, because 45231 - 2¹⁰ = 44207 is a prime.

It is a super-2 number, since 2×45231² = 4091686722, which contains 22 as substring.

It is a D-number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 45231.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 45231.

It is not an unprimeable number, because it can be changed into a prime (45233) 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, 7536 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (15078).

2⁴⁵²³¹ is an apocalyptic number.

45231 is a deficient number, since it is larger than the sum of its proper divisors (15081).

45231 is a wasteful number, since it uses less digits than its factorization.

45231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15080.

The product of its digits is 120, while the sum is 15.

The square root of 45231 is about 212.6758096258. The cubic root of 45231 is about 35.6296915951.

Adding to 45231 its reverse (13254), we get a palindrome (58485).

It can be divided in two parts, 45 and 231, that added together give a triangular number (276 = T₂₃).

The spelling of 45231 in words is "forty-five thousand, two hundred thirty-one".