162158212 has 6 divisors (see below), whose sum is σ = 283776878. Its totient is φ = 81079104.

The previous prime is 162158207. The next prime is 162158221. The reversal of 162158212 is 212851261.

It can be written as a sum of positive squares in only one way, i.e., 159415876 + 2742336 = 12626^2 + 1656^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20269773 + ... + 20269780.

Almost surely, 2^162158212 is an apocalyptic number.

It is an amenable number.

162158212 is a deficient number, since it is larger than the sum of its proper divisors (121618666).

162158212 is a wasteful number, since it uses less digits than its factorization.

162158212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40539557 (or 40539555 counting only the distinct ones).

The product of its digits is 1920, while the sum is 28.

The square root of 162158212 is about 12734.1356989786. The cubic root of 162158212 is about 545.3135832476.

The spelling of 162158212 in words is "one hundred sixty-two million, one hundred fifty-eight thousand, two hundred twelve".