1189074243 has 8 divisors (see below), whose sum is σ = 1811922688. Its totient is φ = 679470984.

The previous prime is 1189074233. The next prime is 1189074277. The reversal of 1189074243 is 3424709811.

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

It is a de Polignac number, because none of the positive numbers 2^k-1189074243 is a prime.

It is a super-3 number, since 3×1189074243³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1189074233) 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, 28311271 + ... + 28311312.

It is an arithmetic number, because the mean of its divisors is an integer number (226490336).

Almost surely, 2^1189074243 is an apocalyptic number.

1189074243 is a deficient number, since it is larger than the sum of its proper divisors (622848445).

1189074243 is an equidigital number, since it uses as much as digits as its factorization.

1189074243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56622593.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1189074243 is about 34482.9558332809. The cubic root of 1189074243 is about 1059.4236343907.

The spelling of 1189074243 in words is "one billion, one hundred eighty-nine million, seventy-four thousand, two hundred forty-three".