163742587 has 2 divisors, whose sum is σ = 163742588. Its totient is φ = 163742586.

The previous prime is 163742569. The next prime is 163742603. The reversal of 163742587 is 785247361.

163742587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (785247361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163742587 - 2⁷ = 163742459 is a prime.

It is not a weakly prime, because it can be changed into another prime (163742687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81871293 + 81871294.

It is an arithmetic number, because the mean of its divisors is an integer number (81871294).

Almost surely, 2^163742587 is an apocalyptic number.

163742587 is a deficient number, since it is larger than the sum of its proper divisors (1).

163742587 is an equidigital number, since it uses as much as digits as its factorization.

163742587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 163742587 is about 12796.1942389134. The cubic root of 163742587 is about 547.0838348958.

The spelling of 163742587 in words is "one hundred sixty-three million, seven hundred forty-two thousand, five hundred eighty-seven".