64747134 has 32 divisors (see below), whose sum is σ = 144145440. Its totient is φ = 21542976.

The previous prime is 64747129. The next prime is 64747141. The reversal of 64747134 is 43174746.

It is a happy number.

64747134 is a `hidden beast` number, since 647 + 4 + 7 + 1 + 3 + 4 = 666.

It is a super-2 number, since 2×64747134² = 8384382722427912, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58474 + ... + 59570.

It is an arithmetic number, because the mean of its divisors is an integer number (4504545).

Almost surely, 2^64747134 is an apocalyptic number.

64747134 is an abundant number, since it is smaller than the sum of its proper divisors (79398306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64747134 is a wasteful number, since it uses less digits than its factorization.

64747134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201 (or 2195 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 64747134 is about 8046.5603831699. The cubic root of 64747134 is about 401.5505111886.

The spelling of 64747134 in words is "sixty-four million, seven hundred forty-seven thousand, one hundred thirty-four".