162313289 has 2 divisors, whose sum is σ = 162313290. Its totient is φ = 162313288.

The previous prime is 162313267. The next prime is 162313309. The reversal of 162313289 is 982313261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132250000 + 30063289 = 11500^2 + 5483^2 .

It is a cyclic number.

It is not a de Polignac number, because 162313289 - 2⁸ = 162313033 is a prime.

It is not a weakly prime, because it can be changed into another prime (162313589) 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, 81156644 + 81156645.

It is an arithmetic number, because the mean of its divisors is an integer number (81156645).

Almost surely, 2^162313289 is an apocalyptic number.

It is an amenable number.

162313289 is a deficient number, since it is larger than the sum of its proper divisors (1).

162313289 is an equidigital number, since it uses as much as digits as its factorization.

162313289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 162313289 is about 12740.2232711990. The cubic root of 162313289 is about 545.4873613750.

The spelling of 162313289 in words is "one hundred sixty-two million, three hundred thirteen thousand, two hundred eighty-nine".