65131336 has 16 divisors (see below), whose sum is σ = 122855040. Its totient is φ = 32370000.

The previous prime is 65131321. The next prime is 65131337. The reversal of 65131336 is 63313156.

65131336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65131337) 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, 23040 + ... + 25711.

It is an arithmetic number, because the mean of its divisors is an integer number (7678440).

Almost surely, 2^65131336 is an apocalyptic number.

It is an amenable number.

65131336 is a deficient number, since it is larger than the sum of its proper divisors (57723704).

65131336 is a wasteful number, since it uses less digits than its factorization.

65131336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48924 (or 48920 counting only the distinct ones).

The product of its digits is 4860, while the sum is 28.

The square root of 65131336 is about 8070.3987509912. The cubic root of 65131336 is about 402.3431967692.

The spelling of 65131336 in words is "sixty-five million, one hundred thirty-one thousand, three hundred thirty-six".