1048201821 has 6 divisors (see below), whose sum is σ = 1514069310. Its totient is φ = 698801208.

The previous prime is 1048201813. The next prime is 1048201831. The reversal of 1048201821 is 1281028401.

1048201821 is a `hidden beast` number, since 1 + 0 + 482 + 0 + 182 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 642622500 + 405579321 = 25350^2 + 20139^2 .

It is not a de Polignac number, because 1048201821 - 2³ = 1048201813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048201831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58233426 + ... + 58233443.

It is an arithmetic number, because the mean of its divisors is an integer number (252344885).

Almost surely, 2^1048201821 is an apocalyptic number.

It is an amenable number.

1048201821 is a deficient number, since it is larger than the sum of its proper divisors (465867489).

1048201821 is a wasteful number, since it uses less digits than its factorization.

1048201821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116466875 (or 116466872 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 1048201821 is about 32375.9450981744. The cubic root of 1048201821 is about 1015.8158149417.

The spelling of 1048201821 in words is "one billion, forty-eight million, two hundred one thousand, eight hundred twenty-one".