134163987 has 8 divisors (see below), whose sum is σ = 179049936. Its totient is φ = 89360352.

The previous prime is 134163979. The next prime is 134164003. The reversal of 134163987 is 789361431.

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

It is not a de Polignac number, because 134163987 - 2³ = 134163979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134163907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16668 + ... + 23369.

It is an arithmetic number, because the mean of its divisors is an integer number (22381242).

Almost surely, 2^134163987 is an apocalyptic number.

134163987 is a deficient number, since it is larger than the sum of its proper divisors (44885949).

134163987 is a wasteful number, since it uses less digits than its factorization.

134163987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41157.

The product of its digits is 108864, while the sum is 42.

The square root of 134163987 is about 11582.9178966269. The cubic root of 134163987 is about 511.9316556622.

The spelling of 134163987 in words is "one hundred thirty-four million, one hundred sixty-three thousand, nine hundred eighty-seven".