230749 has 4 divisors (see below), whose sum is σ = 234720. Its totient is φ = 226780.

The previous prime is 230743. The next prime is 230761. The reversal of 230749 is 947032.

230749 is nontrivially palindromic in base 15.

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 230749 - 2¹³ = 222557 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230743) 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, 1897 + ... + 2014.

It is an arithmetic number, because the mean of its divisors is an integer number (58680).

2²³⁰⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

230749 is a deficient number, since it is larger than the sum of its proper divisors (3971).

230749 is an equidigital number, since it uses as much as digits as its factorization.

230749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 230749 is about 480.3634041015. The cubic root of 230749 is about 61.3356929096.

It can be divided in two parts, 230 and 749, that added together give a palindrome (979).

The spelling of 230749 in words is "two hundred thirty thousand, seven hundred forty-nine".