1189389241 has 8 divisors (see below), whose sum is σ = 1260140544. Its totient is φ = 1118725440.

The previous prime is 1189389239. The next prime is 1189389259. The reversal of 1189389241 is 1429839811.

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

It is a cyclic number.

It is not a de Polignac number, because 1189389241 - 2¹ = 1189389239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1189389191 and 1189389200.

It is not an unprimeable number, because it can be changed into a prime (1189389211) 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, 7236 + ... + 49306.

It is an arithmetic number, because the mean of its divisors is an integer number (157517568).

Almost surely, 2^1189389241 is an apocalyptic number.

It is an amenable number.

1189389241 is a deficient number, since it is larger than the sum of its proper divisors (70751303).

1189389241 is a wasteful number, since it uses less digits than its factorization.

1189389241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43751.

The product of its digits is 124416, while the sum is 46.

The square root of 1189389241 is about 34487.5229757082. The cubic root of 1189389241 is about 1059.5171768710.

The spelling of 1189389241 in words is "one billion, one hundred eighty-nine million, three hundred eighty-nine thousand, two hundred forty-one".