65228113 has 4 divisors (see below), whose sum is σ = 65697520. Its totient is φ = 64758708.

The previous prime is 65228101. The next prime is 65228143. The reversal of 65228113 is 31182256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65228113 - 2⁵ = 65228081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65228143) 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, 234495 + ... + 234772.

It is an arithmetic number, because the mean of its divisors is an integer number (16424380).

Almost surely, 2^65228113 is an apocalyptic number.

It is an amenable number.

65228113 is a deficient number, since it is larger than the sum of its proper divisors (469407).

65228113 is a wasteful number, since it uses less digits than its factorization.

65228113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469406.

The product of its digits is 2880, while the sum is 28.

The square root of 65228113 is about 8076.3923257851. The cubic root of 65228113 is about 402.5423753336.

It can be divided in two parts, 65228 and 113, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 65228113 in words is "sixty-five million, two hundred twenty-eight thousand, one hundred thirteen".