65012423 has 4 divisors (see below), whose sum is σ = 74299920. Its totient is φ = 55724928.

The previous prime is 65012419. The next prime is 65012447. The reversal of 65012423 is 32421056.

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

It is not a de Polignac number, because 65012423 - 2² = 65012419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65011423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4643738 + ... + 4643751.

It is an arithmetic number, because the mean of its divisors is an integer number (18574980).

Almost surely, 2^65012423 is an apocalyptic number.

65012423 is a deficient number, since it is larger than the sum of its proper divisors (9287497).

65012423 is an equidigital number, since it uses as much as digits as its factorization.

65012423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287496.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 65012423 is about 8063.0281532437. The cubic root of 65012423 is about 402.0981893431.

Adding to 65012423 its reverse (32421056), we get a palindrome (97433479).

The spelling of 65012423 in words is "sixty-five million, twelve thousand, four hundred twenty-three".