1067081881 has 2 divisors, whose sum is σ = 1067081882. Its totient is φ = 1067081880.

The previous prime is 1067081861. The next prime is 1067081923. The reversal of 1067081881 is 1881807601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 634233856 + 432848025 = 25184^2 + 20805^2 .

It is a cyclic number.

It is not a de Polignac number, because 1067081881 - 2²⁹ = 530210969 is a prime.

It is a super-2 number, since 2×1067081881² = 2277327481516996322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1067081801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533540940 + 533540941.

It is an arithmetic number, because the mean of its divisors is an integer number (533540941).

Almost surely, 2^1067081881 is an apocalyptic number.

It is an amenable number.

1067081881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067081881 is an equidigital number, since it uses as much as digits as its factorization.

1067081881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 40.

The square root of 1067081881 is about 32666.2192639430. The cubic root of 1067081881 is about 1021.8784687678.

The spelling of 1067081881 in words is "one billion, sixty-seven million, eighty-one thousand, eight hundred eighty-one".