423121162 has 4 divisors (see below), whose sum is σ = 634681746. Its totient is φ = 211560580.

The previous prime is 423121141. The next prime is 423121169. The reversal of 423121162 is 261121324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 302099161 + 121022001 = 17381^2 + 11001^2 .

It is not an unprimeable number, because it can be changed into a prime (423121169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105780289 + ... + 105780292.

Almost surely, 2^423121162 is an apocalyptic number.

423121162 is a deficient number, since it is larger than the sum of its proper divisors (211560584).

423121162 is a wasteful number, since it uses less digits than its factorization.

423121162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211560583.

The product of its digits is 576, while the sum is 22.

The square root of 423121162 is about 20569.9091393229. The cubic root of 423121162 is about 750.7377404511.

Adding to 423121162 its reverse (261121324), we get a palindrome (684242486).

The spelling of 423121162 in words is "four hundred twenty-three million, one hundred twenty-one thousand, one hundred sixty-two".