65134320 has 40 divisors (see below), whose sum is σ = 201917136. Its totient is φ = 17369088.

The previous prime is 65134313. The next prime is 65134343. The reversal of 65134320 is 2343156.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135457 + ... + 135936.

Almost surely, 2^65134320 is an apocalyptic number.

65134320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65134320 is an abundant number, since it is smaller than the sum of its proper divisors (136782816).

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

65134320 is a wasteful number, since it uses less digits than its factorization.

65134320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271409 (or 271403 counting only the distinct ones).

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

The square root of 65134320 is about 8070.5836220189. The cubic root of 65134320 is about 402.3493411427.

Adding to 65134320 its reverse (2343156), we get a palindrome (67477476).

The spelling of 65134320 in words is "sixty-five million, one hundred thirty-four thousand, three hundred twenty".