65212349 has 4 divisors (see below), whose sum is σ = 65380380. Its totient is φ = 65044320.

The previous prime is 65212307. The next prime is 65212361. The reversal of 65212349 is 94321256.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15960025 + 49252324 = 3995^2 + 7018^2 .

It is a cyclic number.

It is not a de Polignac number, because 65212349 - 2¹⁶ = 65146813 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65212379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83432 + ... + 84209.

It is an arithmetic number, because the mean of its divisors is an integer number (16345095).

Almost surely, 2^65212349 is an apocalyptic number.

It is an amenable number.

65212349 is a deficient number, since it is larger than the sum of its proper divisors (168031).

65212349 is a wasteful number, since it uses less digits than its factorization.

65212349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168030.

The product of its digits is 12960, while the sum is 32.

The square root of 65212349 is about 8075.4163360164. The cubic root of 65212349 is about 402.5099445867.

The spelling of 65212349 in words is "sixty-five million, two hundred twelve thousand, three hundred forty-nine".