65845042 has 4 divisors (see below), whose sum is σ = 98767566. Its totient is φ = 32922520.

The previous prime is 65845033. The next prime is 65845049. The reversal of 65845042 is 24054856.

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

It can be written as a sum of positive squares in only one way, i.e., 63059481 + 2785561 = 7941^2 + 1669^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65844989 and 65845007.

It is not an unprimeable number, because it can be changed into a prime (65845049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16461259 + ... + 16461262.

Almost surely, 2^65845042 is an apocalyptic number.

65845042 is a deficient number, since it is larger than the sum of its proper divisors (32922524).

65845042 is a wasteful number, since it uses less digits than its factorization.

65845042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32922523.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 65845042 is about 8114.4957945642. The cubic root of 65845042 is about 403.8074802424.

Adding to 65845042 its reverse (24054856), we get a palindrome (89899898).

The spelling of 65845042 in words is "sixty-five million, eight hundred forty-five thousand, forty-two".