65390541 has 16 divisors (see below), whose sum is σ = 91184640. Its totient is φ = 41603760.

The previous prime is 65390537. The next prime is 65390543. The reversal of 65390541 is 14509356.

It is a happy number.

It is not a de Polignac number, because 65390541 - 2² = 65390537 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65390543) 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 15 ways as a sum of consecutive naturals, for example, 41946 + ... + 43476.

It is an arithmetic number, because the mean of its divisors is an integer number (5699040).

Almost surely, 2^65390541 is an apocalyptic number.

It is an amenable number.

65390541 is a deficient number, since it is larger than the sum of its proper divisors (25794099).

65390541 is a wasteful number, since it uses less digits than its factorization.

65390541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 65390541 is about 8086.4418009406. The cubic root of 65390541 is about 402.8762291107.

Adding to 65390541 its reverse (14509356), we get a palindrome (79899897).

The spelling of 65390541 in words is "sixty-five million, three hundred ninety thousand, five hundred forty-one".