65192243 has 4 divisors (see below), whose sum is σ = 66579360. Its totient is φ = 63805128.

The previous prime is 65192221. The next prime is 65192293. The reversal of 65192243 is 34229156.

It is a happy number.

65192243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 65192243 - 2¹⁶ = 65126707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65192213) 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, 693488 + ... + 693581.

It is an arithmetic number, because the mean of its divisors is an integer number (16644840).

Almost surely, 2^65192243 is an apocalyptic number.

65192243 is a deficient number, since it is larger than the sum of its proper divisors (1387117).

65192243 is a wasteful number, since it uses less digits than its factorization.

65192243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387116.

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

The square root of 65192243 is about 8074.1713506712. The cubic root of 65192243 is about 402.4685736044.

The spelling of 65192243 in words is "sixty-five million, one hundred ninety-two thousand, two hundred forty-three".