1199996539 has 8 divisors (see below), whose sum is σ = 1418715360. Its totient is φ = 993100416.

The previous prime is 1199996521. The next prime is 1199996573. The reversal of 1199996539 is 9356999911.

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

It is not a de Polignac number, because 1199996539 - 2⁹ = 1199996027 is a prime.

It is a super-2 number, since 2×1199996539² = 2879983387223957042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1199996519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2955454 + ... + 2955859.

It is an arithmetic number, because the mean of its divisors is an integer number (177339420).

Almost surely, 2^1199996539 is an apocalyptic number.

1199996539 is a deficient number, since it is larger than the sum of its proper divisors (218718821).

1199996539 is an equidigital number, since it uses as much as digits as its factorization.

1199996539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911349.

The product of its digits is 5314410, while the sum is 61.

The square root of 1199996539 is about 34640.9661961095. The cubic root of 1199996539 is about 1062.6575475535.

The spelling of 1199996539 in words is "one billion, one hundred ninety-nine million, nine hundred ninety-six thousand, five hundred thirty-nine".