1067138091 has 16 divisors (see below), whose sum is σ = 1583989120. Its totient is φ = 710055720.

The previous prime is 1067138081. The next prime is 1067138099. The reversal of 1067138091 is 1908317601.

It is not a de Polignac number, because 1067138091 - 2¹¹ = 1067136043 is a prime.

It is a super-2 number, since 2×1067138091² = 2277567410526248562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1067138099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23665 + ... + 51906.

It is an arithmetic number, because the mean of its divisors is an integer number (98999320).

Almost surely, 2^1067138091 is an apocalyptic number.

1067138091 is a deficient number, since it is larger than the sum of its proper divisors (516851029).

1067138091 is an equidigital number, since it uses as much as digits as its factorization.

1067138091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76103 (or 76097 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1067138091 is about 32667.0796215395. The cubic root of 1067138091 is about 1021.8964114022.

The spelling of 1067138091 in words is "one billion, sixty-seven million, one hundred thirty-eight thousand, ninety-one".