65271290 has 16 divisors (see below), whose sum is σ = 134272512. Its totient is φ = 22378704.

The previous prime is 65271277. The next prime is 65271299. The reversal of 65271290 is 9217256.

It is not an unprimeable number, because it can be changed into a prime (65271299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466154 + ... + 466293.

It is an arithmetic number, because the mean of its divisors is an integer number (8392032).

Almost surely, 2^65271290 is an apocalyptic number.

65271290 is an abundant number, since it is smaller than the sum of its proper divisors (69001222).

65271290 is a wasteful number, since it uses less digits than its factorization.

65271290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932461.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 65271290 is about 8079.0649211403. The cubic root of 65271290 is about 402.6311751766.

The spelling of 65271290 in words is "sixty-five million, two hundred seventy-one thousand, two hundred ninety".