1189552001 has 8 divisors (see below), whose sum is σ = 1302866208. Its totient is φ = 1077100000.

The previous prime is 1189551991. The next prime is 1189552027. The reversal of 1189552001 is 1002559811.

1189552001 is nontrivially palindromic in base 8.

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 1189552001 - 2²² = 1185357697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1189552051) 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, 212660 + ... + 218181.

It is an arithmetic number, because the mean of its divisors is an integer number (162858276).

Almost surely, 2^1189552001 is an apocalyptic number.

1189552001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1189552001 is a deficient number, since it is larger than the sum of its proper divisors (113314207).

1189552001 is a wasteful number, since it uses less digits than its factorization.

1189552001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431103.

The product of its (nonzero) digits is 3600, while the sum is 32.

The square root of 1189552001 is about 34489.8825889564. The cubic root of 1189552001 is about 1059.5655039575.

The spelling of 1189552001 in words is "one billion, one hundred eighty-nine million, five hundred fifty-two thousand, one".