162722141 has 2 divisors, whose sum is σ = 162722142. Its totient is φ = 162722140.

The previous prime is 162722129. The next prime is 162722143. The reversal of 162722141 is 141227261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138180025 + 24542116 = 11755^2 + 4954^2 .

It is a cyclic number.

It is not a de Polignac number, because 162722141 - 2¹⁴ = 162705757 is a prime.

It is a Sophie Germain prime.

Together with 162722143, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 162722141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162722143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81361070 + 81361071.

It is an arithmetic number, because the mean of its divisors is an integer number (81361071).

Almost surely, 2^162722141 is an apocalyptic number.

It is an amenable number.

162722141 is a deficient number, since it is larger than the sum of its proper divisors (1).

162722141 is an equidigital number, since it uses as much as digits as its factorization.

162722141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 26.

The square root of 162722141 is about 12756.2588951463. The cubic root of 162722141 is about 545.9449879052.

The spelling of 162722141 in words is "one hundred sixty-two million, seven hundred twenty-two thousand, one hundred forty-one".