162156994 has 4 divisors (see below), whose sum is σ = 243235494. Its totient is φ = 81078496.

The previous prime is 162156947. The next prime is 162156997. The reversal of 162156994 is 499651261.

162156994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 139546969 + 22610025 = 11813^2 + 4755^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 162156994.

It is not an unprimeable number, because it can be changed into a prime (162156997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40539247 + ... + 40539250.

Almost surely, 2^162156994 is an apocalyptic number.

162156994 is a deficient number, since it is larger than the sum of its proper divisors (81078500).

162156994 is an equidigital number, since it uses as much as digits as its factorization.

162156994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81078499.

The product of its digits is 116640, while the sum is 43.

The square root of 162156994 is about 12734.0878746772. The cubic root of 162156994 is about 545.3122179275.

The spelling of 162156994 in words is "one hundred sixty-two million, one hundred fifty-six thousand, nine hundred ninety-four".