162440233 has 2 divisors, whose sum is σ = 162440234. Its totient is φ = 162440232.

The previous prime is 162440221. The next prime is 162440251. The reversal of 162440233 is 332044261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161874729 + 565504 = 12723^2 + 752^2 .

It is a cyclic number.

It is not a de Polignac number, because 162440233 - 2¹³ = 162432041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 162440198 and 162440207.

It is not a weakly prime, because it can be changed into another prime (162440203) 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, 81220116 + 81220117.

It is an arithmetic number, because the mean of its divisors is an integer number (81220117).

Almost surely, 2^162440233 is an apocalyptic number.

It is an amenable number.

162440233 is a deficient number, since it is larger than the sum of its proper divisors (1).

162440233 is an equidigital number, since it uses as much as digits as its factorization.

162440233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 162440233 is about 12745.2043137801. The cubic root of 162440233 is about 545.6295315027.

Adding to 162440233 its reverse (332044261), we get a palindrome (494484494).

The spelling of 162440233 in words is "one hundred sixty-two million, four hundred forty thousand, two hundred thirty-three".