1189146256 has 45 divisors (see below), whose sum is σ = 2378129691. Its totient is φ = 576020736.

The previous prime is 1189146223. The next prime is 1189146263. The reversal of 1189146256 is 6526419811.

The square root of 1189146256 is 34484.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 22240656 + 1166905600 = 4716^2 + 34160^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5103516 + ... + 5103748.

Almost surely, 2^1189146256 is an apocalyptic number.

1189146256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1189146256 is the 34484-th square number.

It is an amenable number.

1189146256 is a deficient number, since it is larger than the sum of its proper divisors (1188983435).

1189146256 is an frugal number, since it uses more digits than its factorization.

1189146256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 272 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The cubic root of 1189146256 is about 1059.4450209818.

The spelling of 1189146256 in words is "one billion, one hundred eighty-nine million, one hundred forty-six thousand, two hundred fifty-six".