65312413 has 4 divisors (see below), whose sum is σ = 65497788. Its totient is φ = 65127040.

The previous prime is 65312339. The next prime is 65312431. The reversal of 65312413 is 31421356.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52157284 + 13155129 = 7222^2 + 3627^2 .

It is a cyclic number.

It is not a de Polignac number, because 65312413 - 2⁹ = 65311901 is a prime.

It is a super-2 number, since 2×65312413² = 8531422583765138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65312813) 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, 92158 + ... + 92863.

It is an arithmetic number, because the mean of its divisors is an integer number (16374447).

Almost surely, 2^65312413 is an apocalyptic number.

It is an amenable number.

65312413 is a deficient number, since it is larger than the sum of its proper divisors (185375).

65312413 is a wasteful number, since it uses less digits than its factorization.

65312413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185374.

The product of its digits is 2160, while the sum is 25.

The square root of 65312413 is about 8081.6095550330. The cubic root of 65312413 is about 402.7157142637.

Adding to 65312413 its reverse (31421356), we get a palindrome (96733769).

The spelling of 65312413 in words is "sixty-five million, three hundred twelve thousand, four hundred thirteen".