64134199 has 4 divisors (see below), whose sum is σ = 65625736. Its totient is φ = 62642664.

The previous prime is 64134193. The next prime is 64134227. The reversal of 64134199 is 99143146.

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

It is a cyclic number.

It is not a de Polignac number, because 64134199 - 2¹¹ = 64132151 is a prime.

It is a super-2 number, since 2×64134199² = 8226390962743202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64134193) 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, 745704 + ... + 745789.

It is an arithmetic number, because the mean of its divisors is an integer number (16406434).

Almost surely, 2^64134199 is an apocalyptic number.

64134199 is a deficient number, since it is larger than the sum of its proper divisors (1491537).

64134199 is a wasteful number, since it uses less digits than its factorization.

64134199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491536.

The product of its digits is 23328, while the sum is 37.

The square root of 64134199 is about 8008.3830452845. The cubic root of 64134199 is about 400.2793860631.

The spelling of 64134199 in words is "sixty-four million, one hundred thirty-four thousand, one hundred ninety-nine".