162438985 has 4 divisors (see below), whose sum is σ = 194926788. Its totient is φ = 129951184.

The previous prime is 162438967. The next prime is 162439001. The reversal of 162438985 is 589834261.

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

It can be written as a sum of positive squares in 2 ways, for example, as 64448784 + 97990201 = 8028^2 + 9899^2 .

It is a cyclic number.

It is not a de Polignac number, because 162438985 - 2⁵ = 162438953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16243894 + ... + 16243903.

It is an arithmetic number, because the mean of its divisors is an integer number (48731697).

Almost surely, 2^162438985 is an apocalyptic number.

It is an amenable number.

162438985 is a deficient number, since it is larger than the sum of its proper divisors (32487803).

162438985 is an equidigital number, since it uses as much as digits as its factorization.

162438985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32487802.

The product of its digits is 414720, while the sum is 46.

The square root of 162438985 is about 12745.1553540944. The cubic root of 162438985 is about 545.6281341736.

The spelling of 162438985 in words is "one hundred sixty-two million, four hundred thirty-eight thousand, nine hundred eighty-five".