65320134 has 64 divisors (see below), whose sum is σ = 148055040. Its totient is φ = 19040000.

The previous prime is 65320117. The next prime is 65320147. The reversal of 65320134 is 43102356.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 273187 + ... + 273425.

It is an arithmetic number, because the mean of its divisors is an integer number (2313360).

Almost surely, 2^65320134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65320134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74027520).

65320134 is an abundant number, since it is smaller than the sum of its proper divisors (82734906).

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

65320134 is a wasteful number, since it uses less digits than its factorization.

65320134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 65320134 is about 8082.0872304127. The cubic root of 65320134 is about 402.7315828425.

The spelling of 65320134 in words is "sixty-five million, three hundred twenty thousand, one hundred thirty-four".