162563389 has 2 divisors, whose sum is σ = 162563390. Its totient is φ = 162563388.

The previous prime is 162563383. The next prime is 162563393. The reversal of 162563389 is 983365261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137663289 + 24900100 = 11733^2 + 4990^2 .

It is a cyclic number.

It is not a de Polignac number, because 162563389 - 2¹¹ = 162561341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162563383) 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, 81281694 + 81281695.

It is an arithmetic number, because the mean of its divisors is an integer number (81281695).

Almost surely, 2^162563389 is an apocalyptic number.

It is an amenable number.

162563389 is a deficient number, since it is larger than the sum of its proper divisors (1).

162563389 is an equidigital number, since it uses as much as digits as its factorization.

162563389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 43.

The square root of 162563389 is about 12750.0348626974. The cubic root of 162563389 is about 545.7673885149.

The spelling of 162563389 in words is "one hundred sixty-two million, five hundred sixty-three thousand, three hundred eighty-nine".