245043 has 12 divisors (see below), whose sum is σ = 372840. Its totient is φ = 154656.

The previous prime is 245039. The next prime is 245071. The reversal of 245043 is 340542.

It is a happy number.

It is not a de Polignac number, because 245043 - 2² = 245039 is a prime.

It is a nialpdrome in base 12 and base 14.

It is not an unprimeable number, because it can be changed into a prime (245023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546 + ... + 887.

It is an arithmetic number, because the mean of its divisors is an integer number (31070).

2²⁴⁵⁰⁴³ is an apocalyptic number.

245043 is a deficient number, since it is larger than the sum of its proper divisors (127797).

245043 is a wasteful number, since it uses less digits than its factorization.

245043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 245043 is about 495.0181814843. The cubic root of 245043 is about 62.5769079904.

Subtracting from 245043 its sum of digits (18), we obtain a square (245025 = 495²).

Adding to 245043 its reverse (340542), we get a palindrome (585585).

The spelling of 245043 in words is "two hundred forty-five thousand, forty-three".