69108013 has 4 divisors (see below), whose sum is σ = 74424028. Its totient is φ = 63792000.

The previous prime is 69107999. The next prime is 69108029. The reversal of 69108013 is 31080196.

It is a happy number.

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 5076009 + 64032004 = 2253^2 + 8002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69108013 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 (69108313) 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, 2657988 + ... + 2658013.

It is an arithmetic number, because the mean of its divisors is an integer number (18606007).

Almost surely, 2^69108013 is an apocalyptic number.

It is an amenable number.

69108013 is a deficient number, since it is larger than the sum of its proper divisors (5316015).

69108013 is a wasteful number, since it uses less digits than its factorization.

69108013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316014.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 69108013 is about 8313.1229390645. The cubic root of 69108013 is about 410.3705018937.

It can be divided in two parts, 6 and 9108013, that added together give a palindrome (9108019).

The spelling of 69108013 in words is "sixty-nine million, one hundred eight thousand, thirteen".