1191641014 has 4 divisors (see below), whose sum is σ = 1787461524. Its totient is φ = 595820506.

The previous prime is 1191640991. The next prime is 1191641021. The reversal of 1191641014 is 4101461911.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 297910252 + ... + 297910255.

It is an arithmetic number, because the mean of its divisors is an integer number (446865381).

Almost surely, 2^1191641014 is an apocalyptic number.

1191641014 is a deficient number, since it is larger than the sum of its proper divisors (595820510).

1191641014 is an equidigital number, since it uses as much as digits as its factorization.

1191641014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595820509.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 1191641014 is about 34520.1537366217. The cubic root of 1191641014 is about 1060.1853876532.

The spelling of 1191641014 in words is "one billion, one hundred ninety-one million, six hundred forty-one thousand, fourteen".