65120943 has 4 divisors (see below), whose sum is σ = 86827928. Its totient is φ = 43413960.

The previous prime is 65120903. The next prime is 65120947. The reversal of 65120943 is 34902156.

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

It is not a de Polignac number, because 65120943 - 2¹² = 65116847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65120943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65120947) 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, 10853488 + ... + 10853493.

It is an arithmetic number, because the mean of its divisors is an integer number (21706982).

Almost surely, 2^65120943 is an apocalyptic number.

65120943 is a deficient number, since it is larger than the sum of its proper divisors (21706985).

65120943 is a wasteful number, since it uses less digits than its factorization.

65120943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21706984.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 65120943 is about 8069.7548289895. The cubic root of 65120943 is about 402.3217950111.

The spelling of 65120943 in words is "sixty-five million, one hundred twenty thousand, nine hundred forty-three".