1187332749 has 48 divisors (see below), whose sum is σ = 1873872000. Its totient is φ = 749808576.

The previous prime is 1187332721. The next prime is 1187332771. The reversal of 1187332749 is 9472337811.

It is not a de Polignac number, because 1187332749 - 2⁷ = 1187332621 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187332789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 608227 + ... + 610175.

It is an arithmetic number, because the mean of its divisors is an integer number (39039000).

Almost surely, 2^1187332749 is an apocalyptic number.

It is an amenable number.

1187332749 is a deficient number, since it is larger than the sum of its proper divisors (686539251).

1187332749 is a wasteful number, since it uses less digits than its factorization.

1187332749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096 (or 2084 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 1187332749 is about 34457.6950622064. The cubic root of 1187332749 is about 1058.9061782397.

The spelling of 1187332749 in words is "one billion, one hundred eighty-seven million, three hundred thirty-two thousand, seven hundred forty-nine".