264865147 has 4 divisors (see below), whose sum is σ = 273409216. Its totient is φ = 256321080.

The previous prime is 264865141. The next prime is 264865199. The reversal of 264865147 is 741568462.

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 264865147 - 2⁷ = 264865019 is a prime.

It is a super-3 number, since 3×264865147³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264865141) 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, 4271988 + ... + 4272049.

It is an arithmetic number, because the mean of its divisors is an integer number (68352304).

Almost surely, 2^264865147 is an apocalyptic number.

264865147 is a deficient number, since it is larger than the sum of its proper divisors (8544069).

264865147 is an equidigital number, since it uses as much as digits as its factorization.

264865147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8544068.

The product of its digits is 322560, while the sum is 43.

The square root of 264865147 is about 16274.6780920545. The cubic root of 264865147 is about 642.2068566382.

The spelling of 264865147 in words is "two hundred sixty-four million, eight hundred sixty-five thousand, one hundred forty-seven".