245143311 has 8 divisors (see below), whose sum is σ = 373551744. Its totient is φ = 140081880.

The previous prime is 245143273. The next prime is 245143331. The reversal of 245143311 is 113341542.

It is a happy number.

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

It is not a de Polignac number, because 245143311 - 2⁷ = 245143183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245143331) 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, 5836725 + ... + 5836766.

It is an arithmetic number, because the mean of its divisors is an integer number (46693968).

Almost surely, 2^245143311 is an apocalyptic number.

245143311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

245143311 is a deficient number, since it is larger than the sum of its proper divisors (128408433).

245143311 is a wasteful number, since it uses less digits than its factorization.

245143311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11673501.

The product of its digits is 1440, while the sum is 24.

The square root of 245143311 is about 15657.0530752118. The cubic root of 245143311 is about 625.8544567003.

Adding to 245143311 its reverse (113341542), we get a palindrome (358484853).

The spelling of 245143311 in words is "two hundred forty-five million, one hundred forty-three thousand, three hundred eleven".