162491141 has 2 divisors, whose sum is σ = 162491142. Its totient is φ = 162491140.

The previous prime is 162491111. The next prime is 162491191. The reversal of 162491141 is 141194261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162460516 + 30625 = 12746^2 + 175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162491141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162491101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81245570 + 81245571.

It is an arithmetic number, because the mean of its divisors is an integer number (81245571).

Almost surely, 2^162491141 is an apocalyptic number.

It is an amenable number.

162491141 is a deficient number, since it is larger than the sum of its proper divisors (1).

162491141 is an equidigital number, since it uses as much as digits as its factorization.

162491141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 29.

The square root of 162491141 is about 12747.2013006777. The cubic root of 162491141 is about 545.6865247867.

The spelling of 162491141 in words is "one hundred sixty-two million, four hundred ninety-one thousand, one hundred forty-one".