1059346821 has 8 divisors (see below), whose sum is σ = 1521113440. Its totient is φ = 651905712.

The previous prime is 1059346819. The next prime is 1059346831. The reversal of 1059346821 is 1286439501.

1059346821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1059346821 - 2¹ = 1059346819 is a prime.

It is a super-2 number, since 2×1059346821² = 2244431374325612082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 27162739 = 1059346821 / (1 + 0 + 5 + 9 + 3 + 4 + 6 + 8 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1059346821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1059346831) 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, 13581331 + ... + 13581408.

It is an arithmetic number, because the mean of its divisors is an integer number (190139180).

Almost surely, 2^1059346821 is an apocalyptic number.

It is an amenable number.

1059346821 is a deficient number, since it is larger than the sum of its proper divisors (461766619).

1059346821 is a wasteful number, since it uses less digits than its factorization.

1059346821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27162755.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1059346821 is about 32547.6085296601. The cubic root of 1059346821 is about 1019.4033486718.

The spelling of 1059346821 in words is "one billion, fifty-nine million, three hundred forty-six thousand, eight hundred twenty-one".