1189148474 has 8 divisors (see below), whose sum is σ = 1786481568. Its totient is φ = 593654620.

The previous prime is 1189148431. The next prime is 1189148479. The reversal of 1189148474 is 4748419811.

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

It is not an unprimeable number, because it can be changed into a prime (1189148479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458192 + ... + 460779.

It is an arithmetic number, because the mean of its divisors is an integer number (223310196).

Almost surely, 2^1189148474 is an apocalyptic number.

1189148474 is a deficient number, since it is larger than the sum of its proper divisors (597333094).

1189148474 is an equidigital number, since it uses as much as digits as its factorization.

1189148474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919620.

The product of its digits is 258048, while the sum is 47.

The square root of 1189148474 is about 34484.0321598272. The cubic root of 1189148474 is about 1059.4456796750.

The spelling of 1189148474 in words is "one billion, one hundred eighty-nine million, one hundred forty-eight thousand, four hundred seventy-four".