1051008009 has 8 divisors (see below), whose sum is σ = 1475099040. Its totient is φ = 663794496.

The previous prime is 1051007999. The next prime is 1051008011. The reversal of 1051008009 is 9008001501.

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

It is a de Polignac number, because none of the positive numbers 2^k-1051008009 is a prime.

It is a super-2 number, since 2×1051008009² = 2209235669964288162, 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 1051008009.

It is not an unprimeable number, because it can be changed into a prime (1051008059) 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, 9219312 + ... + 9219425.

It is an arithmetic number, because the mean of its divisors is an integer number (184387380).

Almost surely, 2^1051008009 is an apocalyptic number.

1051008009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1051008009 is a deficient number, since it is larger than the sum of its proper divisors (424091031).

1051008009 is a wasteful number, since it uses less digits than its factorization.

1051008009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18438759.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 1051008009 is about 32419.2536774060. The cubic root of 1051008009 is about 1016.7215025277.

The spelling of 1051008009 in words is "one billion, fifty-one million, eight thousand, nine".