1071138706 has 12 divisors (see below), whose sum is σ = 1766051406. Its totient is φ = 486881120.

The previous prime is 1071138697. The next prime is 1071138707. The reversal of 1071138706 is 6078311701.

It can be written as a sum of positive squares in only one way, i.e., 648466225 + 422672481 = 25465^2 + 20559^2 .

It is a super-2 number, since 2×1071138706² = 2294676254982708872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1071138707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2212855 + ... + 2213338.

Almost surely, 2^1071138706 is an apocalyptic number.

1071138706 is a deficient number, since it is larger than the sum of its proper divisors (694912700).

1071138706 is a wasteful number, since it uses less digits than its factorization.

1071138706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4426217 (or 4426206 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 1071138706 is about 32728.2554683258. The cubic root of 1071138706 is about 1023.1718214498.

The spelling of 1071138706 in words is "one billion, seventy-one million, one hundred thirty-eight thousand, seven hundred six".