1187773056 has 48 divisors (see below), whose sum is σ = 3417944010. Its totient is φ = 395923968.

The previous prime is 1187773021. The next prime is 1187773117. The reversal of 1187773056 is 6503777811.

It can be written as a sum of positive squares in only one way, i.e., 951105600 + 236667456 = 30840^2 + 15384^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 514375 + ... + 516678.

Almost surely, 2^1187773056 is an apocalyptic number.

1187773056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1187773056 is an abundant number, since it is smaller than the sum of its proper divisors (2230170954).

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

1187773056 is a wasteful number, since it uses less digits than its factorization.

1187773056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031073 (or 1031058 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 1187773056 is about 34464.0835653583. The cubic root of 1187773056 is about 1059.0370559517.

The spelling of 1187773056 in words is "one billion, one hundred eighty-seven million, seven hundred seventy-three thousand, fifty-six".