1051491330 has 48 divisors (see below), whose sum is σ = 2800567224. Its totient is φ = 273557760.

The previous prime is 1051491319. The next prime is 1051491377. The reversal of 1051491330 is 331941501.

1051491330 is a `hidden beast` number, since 10 + 514 + 9 + 133 + 0 = 666.

1051491330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 787981041 + 263510289 = 28071^2 + 16233^2 .

It is a super-2 number, since 2×1051491330² = 2211268034130337800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051491294 and 1051491303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138789 + ... + 146168.

Almost surely, 2^1051491330 is an apocalyptic number.

1051491330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1051491330 is an abundant number, since it is smaller than the sum of its proper divisors (1749075894).

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

1051491330 is a wasteful number, since it uses less digits than its factorization.

1051491330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285011 (or 285008 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 1051491330 is about 32426.7070483575. The cubic root of 1051491330 is about 1016.8773299309.

The spelling of 1051491330 in words is "one billion, fifty-one million, four hundred ninety-one thousand, three hundred thirty".