1070981565 has 16 divisors (see below), whose sum is σ = 1716095808. Its totient is φ = 570348416.

The previous prime is 1070981507. The next prime is 1070981567. The reversal of 1070981565 is 5651890701.

It is a cyclic number.

It is not a de Polignac number, because 1070981565 - 2⁷ = 1070981437 is a prime.

It is a super-2 number, since 2×1070981565² = 2294003025139698450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1070981567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42024 + ... + 62513.

It is an arithmetic number, because the mean of its divisors is an integer number (107255988).

Almost surely, 2^1070981565 is an apocalyptic number.

1070981565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1070981565 is a deficient number, since it is larger than the sum of its proper divisors (645114243).

1070981565 is a wasteful number, since it uses less digits than its factorization.

1070981565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105228.

The product of its (nonzero) digits is 75600, while the sum is 42.

The square root of 1070981565 is about 32725.8546870819. The cubic root of 1070981565 is about 1023.1217843240.

The spelling of 1070981565 in words is "one billion, seventy million, nine hundred eighty-one thousand, five hundred sixty-five".