65213494 has 8 divisors (see below), whose sum is σ = 98312400. Its totient is φ = 32442696.

The previous prime is 65213437. The next prime is 65213497. The reversal of 65213494 is 49431256.

It is a happy number.

65213494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65213497) 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, 81529 + ... + 82324.

It is an arithmetic number, because the mean of its divisors is an integer number (12289050).

Almost surely, 2^65213494 is an apocalyptic number.

65213494 is a deficient number, since it is larger than the sum of its proper divisors (33098906).

65213494 is a wasteful number, since it uses less digits than its factorization.

65213494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164054.

The product of its digits is 25920, while the sum is 34.

The square root of 65213494 is about 8075.4872298828. The cubic root of 65213494 is about 402.5123003327.

The spelling of 65213494 in words is "sixty-five million, two hundred thirteen thousand, four hundred ninety-four".