264012143 has 4 divisors (see below), whose sum is σ = 273116040. Its totient is φ = 254908248.

The previous prime is 264012139. The next prime is 264012157. The reversal of 264012143 is 341210462.

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 264012143 - 2² = 264012139 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 (264012103) 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, 4551905 + ... + 4551962.

It is an arithmetic number, because the mean of its divisors is an integer number (68279010).

Almost surely, 2^264012143 is an apocalyptic number.

264012143 is a deficient number, since it is larger than the sum of its proper divisors (9103897).

264012143 is an equidigital number, since it uses as much as digits as its factorization.

264012143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9103896.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 264012143 is about 16248.4504799689. The cubic root of 264012143 is about 641.5167014770.

The spelling of 264012143 in words is "two hundred sixty-four million, twelve thousand, one hundred forty-three".