162643530 has 64 divisors (see below), whose sum is σ = 453703680. Its totient is φ = 36542784.

The previous prime is 162643469. The next prime is 162643549. The reversal of 162643530 is 35346261.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5827 + ... + 18953.

It is an arithmetic number, because the mean of its divisors is an integer number (7089120).

Almost surely, 2^162643530 is an apocalyptic number.

162643530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 162643530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226851840).

162643530 is an abundant number, since it is smaller than the sum of its proper divisors (291060150).

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

162643530 is a wasteful number, since it uses less digits than its factorization.

162643530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13203.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 162643530 is about 12753.1772511794. The cubic root of 162643530 is about 545.8570584771.

Adding to 162643530 its reverse (35346261), we get a palindrome (197989791).

The spelling of 162643530 in words is "one hundred sixty-two million, six hundred forty-three thousand, five hundred thirty".