1071166973 has 4 divisors (see below), whose sum is σ = 1071299100. Its totient is φ = 1071034848.

The previous prime is 1071166961. The next prime is 1071167003. The reversal of 1071166973 is 3796611701.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 466646404 + 604520569 = 21602^2 + 24587^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071166973 - 2⁸ = 1071166717 is a prime.

It is a super-2 number, since 2×1071166973² = 2294797368091965458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1071166973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071166273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53048 + ... + 70401.

It is an arithmetic number, because the mean of its divisors is an integer number (267824775).

Almost surely, 2^1071166973 is an apocalyptic number.

It is an amenable number.

1071166973 is a deficient number, since it is larger than the sum of its proper divisors (132127).

1071166973 is an equidigital number, since it uses as much as digits as its factorization.

1071166973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132126.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 1071166973 is about 32728.6873094538. The cubic root of 1071166973 is about 1023.1808217605.

The spelling of 1071166973 in words is "one billion, seventy-one million, one hundred sixty-six thousand, nine hundred seventy-three".