821045141 has 16 divisors (see below), whose sum is σ = 999048960. Its totient is φ = 658679040.

The previous prime is 821045123. The next prime is 821045161. The reversal of 821045141 is 141540128.

It is a cyclic number.

It is not a de Polignac number, because 821045141 - 2⁶ = 821045077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 821045141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (821045111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2480 + ... + 40598.

It is an arithmetic number, because the mean of its divisors is an integer number (62440560).

Almost surely, 2^821045141 is an apocalyptic number.

It is an amenable number.

821045141 is a deficient number, since it is larger than the sum of its proper divisors (178003819).

821045141 is a wasteful number, since it uses less digits than its factorization.

821045141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38324.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 821045141 is about 28653.8852688427. The cubic root of 821045141 is about 936.3876527118.

Adding to 821045141 its reverse (141540128), we get a palindrome (962585269).

The spelling of 821045141 in words is "eight hundred twenty-one million, forty-five thousand, one hundred forty-one".