1030194921 has 32 divisors (see below), whose sum is σ = 1596026880. Its totient is φ = 578922624.

The previous prime is 1030194889. The next prime is 1030194931. The reversal of 1030194921 is 1294910301.

It is not a de Polignac number, because 1030194921 - 2⁵ = 1030194889 is a prime.

It is a super-2 number, since 2×1030194921² = 2122603150508392482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1030194931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415341 + ... + 417813.

It is an arithmetic number, because the mean of its divisors is an integer number (49875840).

Almost surely, 2^1030194921 is an apocalyptic number.

It is an amenable number.

1030194921 is a deficient number, since it is larger than the sum of its proper divisors (565831959).

1030194921 is a wasteful number, since it uses less digits than its factorization.

1030194921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1030194921 is about 32096.6496849749. The cubic root of 1030194921 is about 1009.9653358688.

The spelling of 1030194921 in words is "one billion, thirty million, one hundred ninety-four thousand, nine hundred twenty-one".