162435221 has 8 divisors (see below), whose sum is σ = 185220504. Its totient is φ = 141120000.

The previous prime is 162435197. The next prime is 162435239. The reversal of 162435221 is 122534261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 196 + 162435025 = 14^2 + 12745^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 162435221 - 2⁶ = 162435157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162435241) 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 in 7 ways as a sum of consecutive naturals, for example, 367280 + ... + 367721.

It is an arithmetic number, because the mean of its divisors is an integer number (23152563).

Almost surely, 2^162435221 is an apocalyptic number.

It is an amenable number.

162435221 is a deficient number, since it is larger than the sum of its proper divisors (22785283).

162435221 is a wasteful number, since it uses less digits than its factorization.

162435221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735031.

The product of its digits is 2880, while the sum is 26.

The square root of 162435221 is about 12745.0076892876. The cubic root of 162435221 is about 545.6239197499.

Adding to 162435221 its reverse (122534261), we get a palindrome (284969482).

The spelling of 162435221 in words is "one hundred sixty-two million, four hundred thirty-five thousand, two hundred twenty-one".