163250987 has 12 divisors (see below), whose sum is σ = 172230744. Its totient is φ = 154714560.

The previous prime is 163250963. The next prime is 163251001. The reversal of 163250987 is 789052361.

163250987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163250987 - 2²² = 159056683 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163250917) 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, 58412 + ... + 61142.

It is an arithmetic number, because the mean of its divisors is an integer number (14352562).

Almost surely, 2^163250987 is an apocalyptic number.

163250987 is a deficient number, since it is larger than the sum of its proper divisors (8979757).

163250987 is a wasteful number, since it uses less digits than its factorization.

163250987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890 (or 2867 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 163250987 is about 12776.9709634170. The cubic root of 163250987 is about 546.5357876667.

The spelling of 163250987 in words is "one hundred sixty-three million, two hundred fifty thousand, nine hundred eighty-seven".