162231330 has 32 divisors (see below), whose sum is σ = 395742528. Its totient is φ = 42552000.

The previous prime is 162231281. The next prime is 162231337. The reversal of 162231330 is 33132261.

It is a junction number, because it is equal to n+sod(n) for n = 162231297 and 162231306.

It is not an unprimeable number, because it can be changed into a prime (162231337) 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 15 ways as a sum of consecutive naturals, for example, 42496 + ... + 46155.

It is an arithmetic number, because the mean of its divisors is an integer number (12366954).

Almost surely, 2^162231330 is an apocalyptic number.

162231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162231330 is an abundant number, since it is smaller than the sum of its proper divisors (233511198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162231330 is a wasteful number, since it uses less digits than its factorization.

162231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88722.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 162231330 is about 12737.0063201680. The cubic root of 162231330 is about 545.3955325297.

Adding to 162231330 its reverse (33132261), we get a palindrome (195363591).

The spelling of 162231330 in words is "one hundred sixty-two million, two hundred thirty-one thousand, three hundred thirty".