264512194 has 4 divisors (see below), whose sum is σ = 396768294. Its totient is φ = 132256096.

The previous prime is 264512173. The next prime is 264512203. The reversal of 264512194 is 491215462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 248472169 + 16040025 = 15763^2 + 4005^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66128047 + ... + 66128050.

Almost surely, 2^264512194 is an apocalyptic number.

264512194 is a deficient number, since it is larger than the sum of its proper divisors (132256100).

264512194 is a wasteful number, since it uses less digits than its factorization.

264512194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132256099.

The product of its digits is 17280, while the sum is 34.

The square root of 264512194 is about 16263.8308525390. The cubic root of 264512194 is about 641.9214666346.

The spelling of 264512194 in words is "two hundred sixty-four million, five hundred twelve thousand, one hundred ninety-four".