1051342665 has 32 divisors (see below), whose sum is σ = 1714206720. Its totient is φ = 550120896.

The previous prime is 1051342639. The next prime is 1051342681. The reversal of 1051342665 is 5662431501.

It is not a de Polignac number, because 1051342665 - 2¹² = 1051338569 is a prime.

It is a super-2 number, since 2×1051342665² = 2210642798498604450, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 190434 + ... + 195876.

It is an arithmetic number, because the mean of its divisors is an integer number (53568960).

Almost surely, 2^1051342665 is an apocalyptic number.

1051342665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1051342665 is a deficient number, since it is larger than the sum of its proper divisors (662864055).

1051342665 is a wasteful number, since it uses less digits than its factorization.

1051342665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1051342665 is about 32424.4146439068. The cubic root of 1051342665 is about 1016.8294039711.

The spelling of 1051342665 in words is "one billion, fifty-one million, three hundred forty-two thousand, six hundred sixty-five".