264123481 has 8 divisors (see below), whose sum is σ = 265364424. Its totient is φ = 262886400.

The previous prime is 264123469. The next prime is 264123487. The reversal of 264123481 is 184321462.

It can be written as a sum of positive squares in 4 ways, for example, as 137358400 + 126765081 = 11720^2 + 11259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264123481 - 2¹¹ = 264121433 is a prime.

It is a super-2 number, since 2×264123481² = 139522426431114722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264123487) 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 7 ways as a sum of consecutive naturals, for example, 376431 + ... + 377131.

It is an arithmetic number, because the mean of its divisors is an integer number (33170553).

Almost surely, 2^264123481 is an apocalyptic number.

It is an amenable number.

264123481 is a deficient number, since it is larger than the sum of its proper divisors (1240943).

264123481 is an equidigital number, since it uses as much as digits as its factorization.

264123481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931.

The product of its digits is 9216, while the sum is 31.

The square root of 264123481 is about 16251.8762301465. The cubic root of 264123481 is about 641.6068679717.

The spelling of 264123481 in words is "two hundred sixty-four million, one hundred twenty-three thousand, four hundred eighty-one".