245206233 has 6 divisors (see below), whose sum is σ = 354186794. Its totient is φ = 163470816.

The previous prime is 245206231. The next prime is 245206331. The reversal of 245206233 is 332602542.

It can be written as a sum of positive squares in only one way, i.e., 238795209 + 6411024 = 15453^2 + 2532^2 .

It is not a de Polignac number, because 245206233 - 2¹ = 245206231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245206197 and 245206206.

It is not an unprimeable number, because it can be changed into a prime (245206231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13622560 + ... + 13622577.

Almost surely, 2^245206233 is an apocalyptic number.

It is an amenable number.

245206233 is a deficient number, since it is larger than the sum of its proper divisors (108980561).

245206233 is a wasteful number, since it uses less digits than its factorization.

245206233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27245143 (or 27245140 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 245206233 is about 15659.0623282494. The cubic root of 245206233 is about 625.9079990482.

Adding to 245206233 its reverse (332602542), we get a palindrome (577808775).

The spelling of 245206233 in words is "two hundred forty-five million, two hundred six thousand, two hundred thirty-three".