245331123 has 4 divisors (see below), whose sum is σ = 327108168. Its totient is φ = 163554080.

The previous prime is 245331113. The next prime is 245331143. The reversal of 245331123 is 321133542.

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 245331123 - 2⁵ = 245331091 is a prime.

It is a super-2 number, since 2×245331123² = 120374719824882258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245331093 and 245331102.

It is not an unprimeable number, because it can be changed into a prime (245331113) 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, 40888518 + ... + 40888523.

It is an arithmetic number, because the mean of its divisors is an integer number (81777042).

Almost surely, 2^245331123 is an apocalyptic number.

245331123 is a deficient number, since it is larger than the sum of its proper divisors (81777045).

245331123 is an equidigital number, since it uses as much as digits as its factorization.

245331123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81777044.

The product of its digits is 2160, while the sum is 24.

The square root of 245331123 is about 15663.0496072764. The cubic root of 245331123 is about 626.0142448282.

Adding to 245331123 its reverse (321133542), we get a palindrome (566464665).

The spelling of 245331123 in words is "two hundred forty-five million, three hundred thirty-one thousand, one hundred twenty-three".