1187483140089 has 81 divisors (see below), whose sum is σ = 1906803868333. Its totient is φ = 711925192704.

The previous prime is 1187483140057. The next prime is 1187483140093. The reversal of 1187483140089 is 9800413847811.

The square root of 1187483140089 is 1089717.

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

1187483140089 is a `hidden beast` number, since 1 + 1 + 87 + 4 + 83 + 1 + 400 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 140119205625 + 1047363934464 = 374325^2 + 1023408^2 .

It is not a de Polignac number, because 1187483140089 - 2⁵ = 1187483140057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1187483140009) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1278237577 + ... + 1278238505.

Almost surely, 2^{1187483140089} is an apocalyptic number.

1187483140089 is the 1089717-th square number.

1187483140089 is the 544859-th centered octagonal number.

It is an amenable number.

1187483140089 is a deficient number, since it is larger than the sum of its proper divisors (719320728244).

1187483140089 is an frugal number, since it uses more digits than its factorization.

1187483140089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 1187483140089 in words is "one trillion, one hundred eighty-seven billion, four hundred eighty-three million, one hundred forty thousand, eighty-nine".