245043311 has 4 divisors (see below), whose sum is σ = 255697392. Its totient is φ = 234389232.

The previous prime is 245043299. The next prime is 245043329. The reversal of 245043311 is 113340542.

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 245043311 - 2¹⁴ = 245026927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 10654057 = 245043311 / (2 + 4 + 5 + 0 + 4 + 3 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245043371) 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, 5327006 + ... + 5327051.

It is an arithmetic number, because the mean of its divisors is an integer number (63924348).

Almost surely, 2^245043311 is an apocalyptic number.

245043311 is a deficient number, since it is larger than the sum of its proper divisors (10654081).

245043311 is a wasteful number, since it uses less digits than its factorization.

245043311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10654080.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 245043311 is about 15653.8593005048. The cubic root of 245043311 is about 625.7693446389.

Adding to 245043311 its reverse (113340542), we get a palindrome (358383853).

The spelling of 245043311 in words is "two hundred forty-five million, forty-three thousand, three hundred eleven".