162686042 has 4 divisors (see below), whose sum is σ = 244029066. Its totient is φ = 81343020.

The previous prime is 162686033. The next prime is 162686099. The reversal of 162686042 is 240686261.

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

It can be written as a sum of positive squares in only one way, i.e., 120318961 + 42367081 = 10969^2 + 6509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 162685993 and 162686011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40671509 + ... + 40671512.

Almost surely, 2^162686042 is an apocalyptic number.

162686042 is a deficient number, since it is larger than the sum of its proper divisors (81343024).

162686042 is an equidigital number, since it uses as much as digits as its factorization.

162686042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81343023.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 162686042 is about 12754.8438641953. The cubic root of 162686042 is about 545.9046133019.

The spelling of 162686042 in words is "one hundred sixty-two million, six hundred eighty-six thousand, forty-two".