64134500 has 96 divisors (see below), whose sum is σ = 151831680. Its totient is φ = 23587200.

The previous prime is 64134467. The next prime is 64134503. The reversal of 64134500 is 543146.

It is a happy number.

It is a super-2 number, since 2×64134500² = 8226468180500000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64134503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408422 + ... + 408578.

It is an arithmetic number, because the mean of its divisors is an integer number (1581580).

Almost surely, 2^64134500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64134500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75915840).

64134500 is an abundant number, since it is smaller than the sum of its proper divisors (87697180).

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

64134500 is a wasteful number, since it uses less digits than its factorization.

64134500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 64134500 is about 8008.4018380698. The cubic root of 64134500 is about 400.2800122704.

Adding to 64134500 its reverse (543146), we get a palindrome (64677646).

The spelling of 64134500 in words is "sixty-four million, one hundred thirty-four thousand, five hundred".