1166125042 has 8 divisors (see below), whose sum is σ = 1751231196. Its totient is φ = 582381312.

The previous prime is 1166125039. The next prime is 1166125043. The reversal of 1166125042 is 2405216611.

It can be written as a sum of positive squares in 2 ways, for example, as 1157428441 + 8696601 = 34021^2 + 2949^2 .

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

It is a super-2 number, since 2×1166125042² = 2719695227159003528, 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 1166125042.

It is not an unprimeable number, because it can be changed into a prime (1166125043) 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, 338463 + ... + 341890.

Almost surely, 2^1166125042 is an apocalyptic number.

1166125042 is a deficient number, since it is larger than the sum of its proper divisors (585106154).

1166125042 is an equidigital number, since it uses as much as digits as its factorization.

1166125042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681212.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1166125042 is about 34148.5730594999. The cubic root of 1166125042 is about 1052.5636650517.

The spelling of 1166125042 in words is "one billion, one hundred sixty-six million, one hundred twenty-five thousand, forty-two".