65121652 has 12 divisors (see below), whose sum is σ = 114068416. Its totient is φ = 32530680.

The previous prime is 65121631. The next prime is 65121659. The reversal of 65121652 is 25612156.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 65121652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65121659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2268 + ... + 11635.

Almost surely, 2^65121652 is an apocalyptic number.

It is an amenable number.

65121652 is a deficient number, since it is larger than the sum of its proper divisors (48946764).

65121652 is a wasteful number, since it uses less digits than its factorization.

65121652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15078 (or 15076 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 65121652 is about 8069.7987583334. The cubic root of 65121652 is about 402.3232550899.

The spelling of 65121652 in words is "sixty-five million, one hundred twenty-one thousand, six hundred fifty-two".