1051021860 has 96 divisors (see below), whose sum is σ = 3540311040. Its totient is φ = 227587968.

The previous prime is 1051021819. The next prime is 1051021871. The reversal of 1051021860 is 681201501.

1051021860 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1051021860² = 2209293900395719200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051021860.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57874 + ... + 73833.

It is an arithmetic number, because the mean of its divisors is an integer number (36878240).

Almost surely, 2^1051021860 is an apocalyptic number.

1051021860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051021860 is an abundant number, since it is smaller than the sum of its proper divisors (2489289180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051021860 is a wasteful number, since it uses less digits than its factorization.

1051021860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131745 (or 131743 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 1051021860 is about 32419.4672997568. The cubic root of 1051021860 is about 1016.7259688900.

The spelling of 1051021860 in words is "one billion, fifty-one million, twenty-one thousand, eight hundred sixty".