162158687 has 4 divisors (see below), whose sum is σ = 162886080. Its totient is φ = 161431296.

The previous prime is 162158657. The next prime is 162158701. The reversal of 162158687 is 786851261.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162158687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162158617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363362 + ... + 363807.

It is an arithmetic number, because the mean of its divisors is an integer number (40721520).

Almost surely, 2^162158687 is an apocalyptic number.

162158687 is a deficient number, since it is larger than the sum of its proper divisors (727393).

162158687 is an equidigital number, since it uses as much as digits as its factorization.

162158687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727392.

The product of its digits is 161280, while the sum is 44.

The square root of 162158687 is about 12734.1543496221. The cubic root of 162158687 is about 545.3141156981.

The spelling of 162158687 in words is "one hundred sixty-two million, one hundred fifty-eight thousand, six hundred eighty-seven".