245026231 has 4 divisors (see below), whose sum is σ = 245862792. Its totient is φ = 244189672.

The previous prime is 245026193. The next prime is 245026259. The reversal of 245026231 is 132620542.

245026231 = 24² + 25² + ... + 902².

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 245026231 - 2²³ = 236637623 is a prime.

It is a super-2 number, since 2×245026231² = 120075707756130722, 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 = 245026196 and 245026205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245026531) 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, 417841 + ... + 418426.

It is an arithmetic number, because the mean of its divisors is an integer number (61465698).

Almost surely, 2^245026231 is an apocalyptic number.

245026231 is a deficient number, since it is larger than the sum of its proper divisors (836561).

245026231 is an equidigital number, since it uses as much as digits as its factorization.

245026231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836560.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 245026231 is about 15653.3137386306. The cubic root of 245026231 is about 625.7548051837.

Adding to 245026231 its reverse (132620542), we get a palindrome (377646773).

The spelling of 245026231 in words is "two hundred forty-five million, twenty-six thousand, two hundred thirty-one".