1187135041 has 8 divisors (see below), whose sum is σ = 1311617664. Its totient is φ = 1068724800.

The previous prime is 1187134999. The next prime is 1187135051. The reversal of 1187135041 is 1405317811.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1187135041 - 2²⁵ = 1153580609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1187134994 and 1187135012.

It is not an unprimeable number, because it can be changed into a prime (1187135051) 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 7 ways as a sum of consecutive naturals, for example, 1517685 + ... + 1518466.

It is an arithmetic number, because the mean of its divisors is an integer number (163952208).

Almost surely, 2^1187135041 is an apocalyptic number.

It is an amenable number.

1187135041 is a deficient number, since it is larger than the sum of its proper divisors (124482623).

1187135041 is a wasteful number, since it uses less digits than its factorization.

1187135041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036191.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 1187135041 is about 34454.8260915652. The cubic root of 1187135041 is about 1058.8474006016.

The spelling of 1187135041 in words is "one billion, one hundred eighty-seven million, one hundred thirty-five thousand, forty-one".