163137252 has 72 divisors (see below), whose sum is σ = 411255040. Its totient is φ = 50276160.

The previous prime is 163137223. The next prime is 163137259. The reversal of 163137252 is 252731361.

163137252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×163137252² = 53227525980223008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163137259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196374 + ... + 197202.

Almost surely, 2^163137252 is an apocalyptic number.

163137252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163137252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205627520).

163137252 is an abundant number, since it is smaller than the sum of its proper divisors (248117788).

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

163137252 is a wasteful number, since it uses less digits than its factorization.

163137252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 888 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 163137252 is about 12772.5194069142. The cubic root of 163137252 is about 546.4088365428.

It can be divided in two parts, 1631 and 37252, that added together give a palindrome (38883).

The spelling of 163137252 in words is "one hundred sixty-three million, one hundred thirty-seven thousand, two hundred fifty-two".