1045442731191 has 8 divisors (see below), whose sum is σ = 1399755959040. Its totient is φ = 694045662072.

The previous prime is 1045442731133. The next prime is 1045442731211. The reversal of 1045442731191 is 1911372445401.

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

It is not a de Polignac number, because 1045442731191 - 2¹⁴ = 1045442714807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045442731391) 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, 729038845 + ... + 729040278.

It is an arithmetic number, because the mean of its divisors is an integer number (174969494880).

Almost surely, 2^{1045442731191} is an apocalyptic number.

1045442731191 is a deficient number, since it is larger than the sum of its proper divisors (354313227849).

1045442731191 is a wasteful number, since it uses less digits than its factorization.

1045442731191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458079365.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 1045442731191 in words is "one trillion, forty-five billion, four hundred forty-two million, seven hundred thirty-one thousand, one hundred ninety-one".