264281243 has 4 divisors (see below), whose sum is σ = 267901608. Its totient is φ = 260660880.

The previous prime is 264281239. The next prime is 264281249. The reversal of 264281243 is 342182462.

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 264281243 - 2² = 264281239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264281249) 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, 1810073 + ... + 1810218.

It is an arithmetic number, because the mean of its divisors is an integer number (66975402).

Almost surely, 2^264281243 is an apocalyptic number.

264281243 is a deficient number, since it is larger than the sum of its proper divisors (3620365).

264281243 is an equidigital number, since it uses as much as digits as its factorization.

264281243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3620364.

The product of its digits is 18432, while the sum is 32.

The square root of 264281243 is about 16256.7291605661. The cubic root of 264281243 is about 641.7345873194.

The spelling of 264281243 in words is "two hundred sixty-four million, two hundred eighty-one thousand, two hundred forty-three".