122531232 has 48 divisors (see below), whose sum is σ = 326192832. Its totient is φ = 40266240.

The previous prime is 122531221. The next prime is 122531239. The reversal of 122531232 is 232135221.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 122531199 and 122531208.

It is not an unprimeable number, because it can be changed into a prime (122531239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173 + ... + 15804.

It is an arithmetic number, because the mean of its divisors is an integer number (6795684).

Almost surely, 2^122531232 is an apocalyptic number.

122531232 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 122531232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163096416).

122531232 is an abundant number, since it is smaller than the sum of its proper divisors (203661600).

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

122531232 is a wasteful number, since it uses less digits than its factorization.

122531232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18061 (or 18053 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 122531232 is about 11069.3826386118. The cubic root of 122531232 is about 496.6863979269.

Adding to 122531232 its reverse (232135221), we get a palindrome (354666453).

The spelling of 122531232 in words is "one hundred twenty-two million, five hundred thirty-one thousand, two hundred thirty-two".