69821141 has 4 divisors (see below), whose sum is σ = 75192012. Its totient is φ = 64450272.

The previous prime is 69821117. The next prime is 69821161. The reversal of 69821141 is 14112896.

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 6682225 + 63138916 = 2585^2 + 7946^2 .

It is a cyclic number.

It is not a de Polignac number, because 69821141 - 2²² = 65626837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69821098 and 69821107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69821161) 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, 2685416 + ... + 2685441.

It is an arithmetic number, because the mean of its divisors is an integer number (18798003).

Almost surely, 2^69821141 is an apocalyptic number.

It is an amenable number.

69821141 is a deficient number, since it is larger than the sum of its proper divisors (5370871).

69821141 is a wasteful number, since it uses less digits than its factorization.

69821141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370870.

The product of its digits is 3456, while the sum is 32.

The square root of 69821141 is about 8355.9045590528. The cubic root of 69821141 is about 411.7772167999. Note that the first 3 decimals are identical.

The spelling of 69821141 in words is "sixty-nine million, eight hundred twenty-one thousand, one hundred forty-one".