162423649 has 2 divisors, whose sum is σ = 162423650. Its totient is φ = 162423648.

The previous prime is 162423623. The next prime is 162423689. The reversal of 162423649 is 946324261.

It is a happy number.

162423649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82446400 + 79977249 = 9080^2 + 8943^2 .

It is a cyclic number.

It is not a de Polignac number, because 162423649 - 2⁹ = 162423137 is a prime.

It is not a weakly prime, because it can be changed into another prime (162423619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81211824 + 81211825.

It is an arithmetic number, because the mean of its divisors is an integer number (81211825).

Almost surely, 2^162423649 is an apocalyptic number.

It is an amenable number.

162423649 is a deficient number, since it is larger than the sum of its proper divisors (1).

162423649 is an equidigital number, since it uses as much as digits as its factorization.

162423649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 162423649 is about 12744.5536995220. The cubic root of 162423649 is about 545.6109625642.

It can be divided in two parts, 16242 and 3649, that added together give a palindrome (19891).

The spelling of 162423649 in words is "one hundred sixty-two million, four hundred twenty-three thousand, six hundred forty-nine".