1065612787 has 2 divisors, whose sum is σ = 1065612788. Its totient is φ = 1065612786.

The previous prime is 1065612767. The next prime is 1065612827. The reversal of 1065612787 is 7872165601.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1065612787 is a prime.

It is a super-2 number, since 2×1065612787² = 2271061223635814738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1065612707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532806393 + 532806394.

It is an arithmetic number, because the mean of its divisors is an integer number (532806394).

Almost surely, 2^1065612787 is an apocalyptic number.

1065612787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065612787 is an equidigital number, since it uses as much as digits as its factorization.

1065612787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 1065612787 is about 32643.7250784894. The cubic root of 1065612787 is about 1021.4092998383.

The spelling of 1065612787 in words is "one billion, sixty-five million, six hundred twelve thousand, seven hundred eighty-seven".