65045443 has 8 divisors (see below), whose sum is σ = 66100320. Its totient is φ = 63994560.

The previous prime is 65045437. The next prime is 65045447. The reversal of 65045443 is 34454056.

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

It is a cyclic number.

It is not a de Polignac number, because 65045443 - 2²⁵ = 31491011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65045447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60313 + ... + 61381.

It is an arithmetic number, because the mean of its divisors is an integer number (8262540).

Almost surely, 2^65045443 is an apocalyptic number.

65045443 is a deficient number, since it is larger than the sum of its proper divisors (1054877).

65045443 is a wasteful number, since it uses less digits than its factorization.

65045443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 65045443 is about 8065.0755111158. The cubic root of 65045443 is about 402.1662534370.

Adding to 65045443 its reverse (34454056), we get a palindrome (99499499).

The spelling of 65045443 in words is "sixty-five million, forty-five thousand, four hundred forty-three".