245042231 has 8 divisors (see below), whose sum is σ = 287617440. Its totient is φ = 204359328.

The previous prime is 245042227. The next prime is 245042243. The reversal of 245042231 is 132240542.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245042231 - 2² = 245042227 is a prime.

It is a super-2 number, since 2×245042231² = 120091389946914722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245042197 and 245042206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245042201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472796 + ... + 473313.

It is an arithmetic number, because the mean of its divisors is an integer number (35952180).

Almost surely, 2^245042231 is an apocalyptic number.

245042231 is a deficient number, since it is larger than the sum of its proper divisors (42575209).

245042231 is an equidigital number, since it uses as much as digits as its factorization.

245042231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946153.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 245042231 is about 15653.8248041812. The cubic root of 245042231 is about 625.7684253022.

Adding to 245042231 its reverse (132240542), we get a palindrome (377282773).

The spelling of 245042231 in words is "two hundred forty-five million, forty-two thousand, two hundred thirty-one".