1161941836 has 12 divisors (see below), whose sum is σ = 2218252680. Its totient is φ = 528155360.

The previous prime is 1161941831. The next prime is 1161941839. The reversal of 1161941836 is 6381491611.

It is not an unprimeable number, because it can be changed into a prime (1161941831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13203841 + ... + 13203928.

It is an arithmetic number, because the mean of its divisors is an integer number (184854390).

Almost surely, 2^1161941836 is an apocalyptic number.

It is an amenable number.

1161941836 is a deficient number, since it is larger than the sum of its proper divisors (1056310844).

1161941836 is a wasteful number, since it uses less digits than its factorization.

1161941836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26407784 (or 26407782 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 1161941836 is about 34087.2679456714. The cubic root of 1161941836 is about 1051.3035468471.

The spelling of 1161941836 in words is "one billion, one hundred sixty-one million, nine hundred forty-one thousand, eight hundred thirty-six".