264145405 has 32 divisors (see below), whose sum is σ = 352221696. Its totient is φ = 189287424.

The previous prime is 264145373. The next prime is 264145471. The reversal of 264145405 is 504541462.

It is a happy number.

It is not a de Polignac number, because 264145405 - 2⁵ = 264145373 is a prime.

It is a super-2 number, since 2×264145405² = 139545589965228050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146922 + ... + 148708.

It is an arithmetic number, because the mean of its divisors is an integer number (11006928).

Almost surely, 2^264145405 is an apocalyptic number.

It is an amenable number.

264145405 is a deficient number, since it is larger than the sum of its proper divisors (88076291).

264145405 is a wasteful number, since it uses less digits than its factorization.

264145405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 264145405 is about 16252.5507228865. The cubic root of 264145405 is about 641.6246200218.

Adding to 264145405 its reverse (504541462), we get a palindrome (768686867).

The spelling of 264145405 in words is "two hundred sixty-four million, one hundred forty-five thousand, four hundred five".