162021199 has 2 divisors, whose sum is σ = 162021200. Its totient is φ = 162021198.

The previous prime is 162021161. The next prime is 162021241. The reversal of 162021199 is 991120261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162021199 - 2⁷ = 162021071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162021199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162021149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81010599 + 81010600.

It is an arithmetic number, because the mean of its divisors is an integer number (81010600).

Almost surely, 2^162021199 is an apocalyptic number.

162021199 is a deficient number, since it is larger than the sum of its proper divisors (1).

162021199 is an equidigital number, since it uses as much as digits as its factorization.

162021199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 162021199 is about 12728.7548094855. The cubic root of 162021199 is about 545.1599552937.

The spelling of 162021199 in words is "one hundred sixty-two million, twenty-one thousand, one hundred ninety-nine".