119131987 has 12 divisors (see below), whose sum is σ = 129338544. Its totient is φ = 109680480.

The previous prime is 119131979. The next prime is 119131993. The reversal of 119131987 is 789131911.

It is not a de Polignac number, because 119131987 - 2³ = 119131979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (119131967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90778 + ... + 92080.

It is an arithmetic number, because the mean of its divisors is an integer number (10778212).

Almost surely, 2^119131987 is an apocalyptic number.

119131987 is a deficient number, since it is larger than the sum of its proper divisors (10206557).

119131987 is a wasteful number, since it uses less digits than its factorization.

119131987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870 (or 1857 counting only the distinct ones).

The product of its digits is 13608, while the sum is 40.

The square root of 119131987 is about 10914.7600523328. The cubic root of 119131987 is about 492.0502556790.

The spelling of 119131987 in words is "one hundred nineteen million, one hundred thirty-one thousand, nine hundred eighty-seven".