69136841 has 8 divisors (see below), whose sum is σ = 75728520. Its totient is φ = 62825728.

The previous prime is 69136829. The next prime is 69136867. The reversal of 69136841 is 14863196.

It can be written as a sum of positive squares in 4 ways, for example, as 42055225 + 27081616 = 6485^2 + 5204^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69136841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69136795 and 69136804.

It is not an unprimeable number, because it can be changed into a prime (69136871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69626 + ... + 70611.

It is an arithmetic number, because the mean of its divisors is an integer number (9466065).

Almost surely, 2^69136841 is an apocalyptic number.

It is an amenable number.

69136841 is a deficient number, since it is larger than the sum of its proper divisors (6591679).

69136841 is a wasteful number, since it uses less digits than its factorization.

69136841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140283.

The product of its digits is 31104, while the sum is 38.

The square root of 69136841 is about 8314.8566433824. The cubic root of 69136841 is about 410.4275551728.

The spelling of 69136841 in words is "sixty-nine million, one hundred thirty-six thousand, eight hundred forty-one".