264721125 has 32 divisors (see below), whose sum is σ = 452424960. Its totient is φ = 137361600.

The previous prime is 264721123. The next prime is 264721139. The reversal of 264721125 is 521127462.

It is not a de Polignac number, because 264721125 - 2¹ = 264721123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 264721092 and 264721101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264721123) 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 31 ways as a sum of consecutive naturals, for example, 4336 + ... + 23414.

It is an arithmetic number, because the mean of its divisors is an integer number (14138280).

Almost surely, 2^264721125 is an apocalyptic number.

264721125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264721125 is a deficient number, since it is larger than the sum of its proper divisors (187703835).

264721125 is a wasteful number, since it uses less digits than its factorization.

264721125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19134 (or 19124 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 264721125 is about 16270.2527638633. The cubic root of 264721125 is about 642.0904342671.

Adding to 264721125 its reverse (521127462), we get a palindrome (785848587).

The spelling of 264721125 in words is "two hundred sixty-four million, seven hundred twenty-one thousand, one hundred twenty-five".