162320461 has 2 divisors, whose sum is σ = 162320462. Its totient is φ = 162320460.

The previous prime is 162320449. The next prime is 162320497. The reversal of 162320461 is 164023261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146168100 + 16152361 = 12090^2 + 4019^2 .

It is a cyclic number.

It is not a de Polignac number, because 162320461 - 2²⁷ = 28102733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162323461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81160230 + 81160231.

It is an arithmetic number, because the mean of its divisors is an integer number (81160231).

Almost surely, 2^162320461 is an apocalyptic number.

It is an amenable number.

162320461 is a deficient number, since it is larger than the sum of its proper divisors (1).

162320461 is an equidigital number, since it uses as much as digits as its factorization.

162320461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 162320461 is about 12740.5047388241. The cubic root of 162320461 is about 545.4953955862.

The spelling of 162320461 in words is "one hundred sixty-two million, three hundred twenty thousand, four hundred sixty-one".