821145614 has 16 divisors (see below), whose sum is σ = 1285891200. Its totient is φ = 392775264.

The previous prime is 821145599. The next prime is 821145631. The reversal of 821145614 is 416541128.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58622 + ... + 71265.

It is an arithmetic number, because the mean of its divisors is an integer number (80368200).

Almost surely, 2^821145614 is an apocalyptic number.

821145614 is a deficient number, since it is larger than the sum of its proper divisors (464745586).

821145614 is a wasteful number, since it uses less digits than its factorization.

821145614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130027.

The product of its digits is 7680, while the sum is 32.

The square root of 821145614 is about 28655.6384329507. The cubic root of 821145614 is about 936.4258470548.

The spelling of 821145614 in words is "eight hundred twenty-one million, one hundred forty-five thousand, six hundred fourteen".