1051711065 has 48 divisors (see below), whose sum is σ = 1888071120. Its totient is φ = 541232640.

The previous prime is 1051711043. The next prime is 1051711079. The reversal of 1051711065 is 5601171501.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12809241 + 1038901824 = 3579^2 + 32232^2 .

It is not a de Polignac number, because 1051711065 - 2⁷ = 1051710937 is a prime.

It is a super-2 number, since 2×1051711065² = 2212192328486868450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 141871 + ... + 149099.

It is an arithmetic number, because the mean of its divisors is an integer number (39334815).

Almost surely, 2^1051711065 is an apocalyptic number.

1051711065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1051711065 is a deficient number, since it is larger than the sum of its proper divisors (836360055).

1051711065 is a wasteful number, since it uses less digits than its factorization.

1051711065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7354 (or 7351 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 27.

The square root of 1051711065 is about 32430.0950507395. The cubic root of 1051711065 is about 1016.9481588481.

Adding to 1051711065 its reverse (5601171501), we get a palindrome (6652882566).

The spelling of 1051711065 in words is "one billion, fifty-one million, seven hundred eleven thousand, sixty-five".