1061850921 has 16 divisors (see below), whose sum is σ = 1466708160. Its totient is φ = 682516800.

The previous prime is 1061850917. The next prime is 1061850953. The reversal of 1061850921 is 1290581601.

It is not a de Polignac number, because 1061850921 - 2² = 1061850917 is a prime.

It is a super-2 number, since 2×1061850921² = 2255054756857096482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061850961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55446 + ... + 72096.

It is an arithmetic number, because the mean of its divisors is an integer number (91669260).

Almost surely, 2^1061850921 is an apocalyptic number.

It is an amenable number.

1061850921 is a deficient number, since it is larger than the sum of its proper divisors (404857239).

1061850921 is a wasteful number, since it uses less digits than its factorization.

1061850921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17416.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 1061850921 is about 32586.0540876001. The cubic root of 1061850921 is about 1020.2059436141.

The spelling of 1061850921 in words is "one billion, sixty-one million, eight hundred fifty thousand, nine hundred twenty-one".