1132445047 has 4 divisors (see below), whose sum is σ = 1132749280. Its totient is φ = 1132140816.

The previous prime is 1132445023. The next prime is 1132445081. The reversal of 1132445047 is 7405442311.

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

It is a cyclic number.

It is not a de Polignac number, because 1132445047 - 2¹⁹ = 1131920759 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 (1132445947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146463 + ... + 154000.

It is an arithmetic number, because the mean of its divisors is an integer number (283187320).

Almost surely, 2^1132445047 is an apocalyptic number.

1132445047 is a deficient number, since it is larger than the sum of its proper divisors (304233).

1132445047 is an equidigital number, since it uses as much as digits as its factorization.

1132445047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304232.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 1132445047 is about 33651.8208571245. The cubic root of 1132445047 is about 1042.3311389303.

Adding to 1132445047 its reverse (7405442311), we get a palindrome (8537887358).

The spelling of 1132445047 in words is "one billion, one hundred thirty-two million, four hundred forty-five thousand, forty-seven".