1189522650 has 24 divisors (see below), whose sum is σ = 2950016544. Its totient is φ = 317206000.

The previous prime is 1189522603. The next prime is 1189522661. The reversal of 1189522650 is 562259811.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1189522599 and 1189522608.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3964926 + ... + 3965225.

It is an arithmetic number, because the mean of its divisors is an integer number (122917356).

Almost surely, 2^1189522650 is an apocalyptic number.

1189522650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1189522650 is an abundant number, since it is smaller than the sum of its proper divisors (1760493894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1189522650 is a wasteful number, since it uses less digits than its factorization.

1189522650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930166 (or 7930161 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 1189522650 is about 34489.4570847382. The cubic root of 1189522650 is about 1059.5567893146.

The spelling of 1189522650 in words is "one billion, one hundred eighty-nine million, five hundred twenty-two thousand, six hundred fifty".