162038561 has 2 divisors, whose sum is σ = 162038562. Its totient is φ = 162038560.

The previous prime is 162038537. The next prime is 162038633. The reversal of 162038561 is 165830261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159542161 + 2496400 = 12631^2 + 1580^2 .

It is an emirp because it is prime and its reverse (165830261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162038561 - 2²⁶ = 94929697 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (162038501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81019280 + 81019281.

It is an arithmetic number, because the mean of its divisors is an integer number (81019281).

Almost surely, 2^162038561 is an apocalyptic number.

It is an amenable number.

162038561 is a deficient number, since it is larger than the sum of its proper divisors (1).

162038561 is an equidigital number, since it uses as much as digits as its factorization.

162038561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 162038561 is about 12729.4367903690. The cubic root of 162038561 is about 545.1794274967.

The spelling of 162038561 in words is "one hundred sixty-two million, thirty-eight thousand, five hundred sixty-one".