162044891 has 2 divisors, whose sum is σ = 162044892. Its totient is φ = 162044890.

The previous prime is 162044849. The next prime is 162044917. The reversal of 162044891 is 198440261.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162044891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (162044191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81022445 + 81022446.

It is an arithmetic number, because the mean of its divisors is an integer number (81022446).

Almost surely, 2^162044891 is an apocalyptic number.

162044891 is a deficient number, since it is larger than the sum of its proper divisors (1).

162044891 is an equidigital number, since it uses as much as digits as its factorization.

162044891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 162044891 is about 12729.6854242357. The cubic root of 162044891 is about 545.1865265083.

The spelling of 162044891 in words is "one hundred sixty-two million, forty-four thousand, eight hundred ninety-one".