1071906189 has 8 divisors (see below), whose sum is σ = 1475311872. Its totient is φ = 691552320.

The previous prime is 1071906181. The next prime is 1071906197. The reversal of 1071906189 is 9816091701.

It is an interprime number because it is at equal distance from previous prime (1071906181) and next prime (1071906197).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1071906189 - 2³ = 1071906181 is a prime.

It is a super-2 number, since 2×1071906189² = 2297965756033007442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1071906189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071906181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5762844 + ... + 5763029.

It is an arithmetic number, because the mean of its divisors is an integer number (184413984).

Almost surely, 2^1071906189 is an apocalyptic number.

It is an amenable number.

1071906189 is a deficient number, since it is larger than the sum of its proper divisors (403405683).

1071906189 is a wasteful number, since it uses less digits than its factorization.

1071906189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11525907.

The product of its (nonzero) digits is 27216, while the sum is 42.

The square root of 1071906189 is about 32739.9784514285. The cubic root of 1071906189 is about 1023.4161345029.

The spelling of 1071906189 in words is "one billion, seventy-one million, nine hundred six thousand, one hundred eighty-nine".