1191732493 has 8 divisors (see below), whose sum is σ = 1362358080. Its totient is φ = 1021201440.

The previous prime is 1191732481. The next prime is 1191732523. The reversal of 1191732493 is 3942371911.

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

It is not a de Polignac number, because 1191732493 - 2⁵ = 1191732461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191732403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5838 + ... + 49168.

It is an arithmetic number, because the mean of its divisors is an integer number (170294760).

Almost surely, 2^1191732493 is an apocalyptic number.

It is an amenable number.

1191732493 is a deficient number, since it is larger than the sum of its proper divisors (170625587).

1191732493 is an equidigital number, since it uses as much as digits as its factorization.

1191732493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47267.

The product of its digits is 40824, while the sum is 40.

The square root of 1191732493 is about 34521.4787197768. The cubic root of 1191732493 is about 1060.2125161302.

The spelling of 1191732493 in words is "one billion, one hundred ninety-one million, seven hundred thirty-two thousand, four hundred ninety-three".