245166311 has 4 divisors (see below), whose sum is σ = 264025272. Its totient is φ = 226307352.

The previous prime is 245166307. The next prime is 245166323. The reversal of 245166311 is 113661542.

It is a happy number.

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 245166311 - 2² = 245166307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245166301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9429461 + ... + 9429486.

It is an arithmetic number, because the mean of its divisors is an integer number (66006318).

Almost surely, 2^245166311 is an apocalyptic number.

245166311 is a deficient number, since it is larger than the sum of its proper divisors (18858961).

245166311 is a wasteful number, since it uses less digits than its factorization.

245166311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18858960.

The product of its digits is 4320, while the sum is 29.

The square root of 245166311 is about 15657.7875512475. The cubic root of 245166311 is about 625.8740292003.

The spelling of 245166311 in words is "two hundred forty-five million, one hundred sixty-six thousand, three hundred eleven".