264225137 has 4 divisors (see below), whose sum is σ = 288245616. Its totient is φ = 240204660.

The previous prime is 264225133. The next prime is 264225139. The reversal of 264225137 is 731522462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 264225137 - 2² = 264225133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264225131) 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, 12010223 + ... + 12010244.

It is an arithmetic number, because the mean of its divisors is an integer number (72061404).

Almost surely, 2^264225137 is an apocalyptic number.

It is an amenable number.

264225137 is a deficient number, since it is larger than the sum of its proper divisors (24020479).

264225137 is a wasteful number, since it uses less digits than its factorization.

264225137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24020478.

The product of its digits is 20160, while the sum is 32.

The square root of 264225137 is about 16255.0034450935. The cubic root of 264225137 is about 641.6891714226.

Adding to 264225137 its reverse (731522462), we get a palindrome (995747599).

The spelling of 264225137 in words is "two hundred sixty-four million, two hundred twenty-five thousand, one hundred thirty-seven".