245231133 has 24 divisors (see below), whose sum is σ = 382596768. Its totient is φ = 139307616.

The previous prime is 245231123. The next prime is 245231213. The reversal of 245231133 is 331132542.

It is not a de Polignac number, because 245231133 - 2⁴ = 245231117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245231113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20610 + ... + 30252.

It is an arithmetic number, because the mean of its divisors is an integer number (15941532).

Almost surely, 2^245231133 is an apocalyptic number.

It is an amenable number.

245231133 is a deficient number, since it is larger than the sum of its proper divisors (137365635).

245231133 is a wasteful number, since it uses less digits than its factorization.

245231133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9833 (or 9826 counting only the distinct ones).

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

The square root of 245231133 is about 15659.8573748294. The cubic root of 245231133 is about 625.9291847273.

Adding to 245231133 its reverse (331132542), we get a palindrome (576363675).

The spelling of 245231133 in words is "two hundred forty-five million, two hundred thirty-one thousand, one hundred thirty-three".