168021962 has 4 divisors (see below), whose sum is σ = 252032946. Its totient is φ = 84010980.

The previous prime is 168021961. The next prime is 168022003. The reversal of 168021962 is 269120861.

168021962 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 269120861 = 23 ⋅11700907.

It can be written as a sum of positive squares in only one way, i.e., 158030041 + 9991921 = 12571^2 + 3161^2 .

It is not an unprimeable number, because it can be changed into a prime (168021961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42005489 + ... + 42005492.

Almost surely, 2^168021962 is an apocalyptic number.

168021962 is a deficient number, since it is larger than the sum of its proper divisors (84010984).

168021962 is an equidigital number, since it uses as much as digits as its factorization.

168021962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84010983.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 168021962 is about 12962.3285716726. The cubic root of 168021962 is about 551.8088784717.

The spelling of 168021962 in words is "one hundred sixty-eight million, twenty-one thousand, nine hundred sixty-two".