1126191985 has 8 divisors (see below), whose sum is σ = 1351610496. Its totient is φ = 900833520.

The previous prime is 1126191961. The next prime is 1126192007. The reversal of 1126191985 is 5891916211.

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

It is not a de Polignac number, because 1126191985 - 2¹¹ = 1126189937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66562 + ... + 81748.

It is an arithmetic number, because the mean of its divisors is an integer number (168951312).

Almost surely, 2^1126191985 is an apocalyptic number.

It is an amenable number.

1126191985 is a deficient number, since it is larger than the sum of its proper divisors (225418511).

1126191985 is a wasteful number, since it uses less digits than its factorization.

1126191985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30023.

The product of its digits is 38880, while the sum is 43.

The square root of 1126191985 is about 33558.7840214749. The cubic root of 1126191985 is about 1040.4091046436.

The spelling of 1126191985 in words is "one billion, one hundred twenty-six million, one hundred ninety-one thousand, nine hundred eighty-five".