162244993 has 2 divisors, whose sum is σ = 162244994. Its totient is φ = 162244992.

The previous prime is 162244931. The next prime is 162245021. The reversal of 162244993 is 399442261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96196864 + 66048129 = 9808^2 + 8127^2 .

It is an emirp because it is prime and its reverse (399442261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162244993 is a prime.

It is not a weakly prime, because it can be changed into another prime (162244193) 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, 81122496 + 81122497.

It is an arithmetic number, because the mean of its divisors is an integer number (81122497).

Almost surely, 2^162244993 is an apocalyptic number.

It is an amenable number.

162244993 is a deficient number, since it is larger than the sum of its proper divisors (1).

162244993 is an equidigital number, since it uses as much as digits as its factorization.

162244993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 162244993 is about 12737.5426593986. The cubic root of 162244993 is about 545.4108430331.

The spelling of 162244993 in words is "one hundred sixty-two million, two hundred forty-four thousand, nine hundred ninety-three".