65134787 has 4 divisors (see below), whose sum is σ = 66107016. Its totient is φ = 64162560.

The previous prime is 65134759. The next prime is 65134801. The reversal of 65134787 is 78743156.

65134787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65134787 - 2¹⁰ = 65133763 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (65134387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486014 + ... + 486147.

It is an arithmetic number, because the mean of its divisors is an integer number (16526754).

Almost surely, 2^65134787 is an apocalyptic number.

65134787 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

65134787 is a deficient number, since it is larger than the sum of its proper divisors (972229).

65134787 is an equidigital number, since it uses as much as digits as its factorization.

65134787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972228.

The product of its digits is 141120, while the sum is 41.

The square root of 65134787 is about 8070.6125541993. The cubic root of 65134787 is about 402.3503027284.

The spelling of 65134787 in words is "sixty-five million, one hundred thirty-four thousand, seven hundred eighty-seven".