1174011987 has 8 divisors (see below), whose sum is σ = 1565697280. Its totient is φ = 782500680.

The previous prime is 1174011983. The next prime is 1174012001. The reversal of 1174011987 is 7891104711.

It is a happy number.

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

It is not a de Polignac number, because 1174011987 - 2² = 1174011983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1174011983) 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, 26839 + ... + 55392.

It is an arithmetic number, because the mean of its divisors is an integer number (195712160).

Almost surely, 2^1174011987 is an apocalyptic number.

1174011987 is a deficient number, since it is larger than the sum of its proper divisors (391685293).

1174011987 is an equidigital number, since it uses as much as digits as its factorization.

1174011987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86993.

The product of its (nonzero) digits is 14112, while the sum is 39.

The square root of 1174011987 is about 34263.8583203935. The cubic root of 1174011987 is about 1054.9312974585.

It can be divided in two parts, 117 and 4011987, that added together give a palindrome (4012104).

The spelling of 1174011987 in words is "one billion, one hundred seventy-four million, eleven thousand, nine hundred eighty-seven".