121348188 has 72 divisors (see below), whose sum is σ = 331688448. Its totient is φ = 37185408.

The previous prime is 121348181. The next prime is 121348223. The reversal of 121348188 is 881843121.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121348181) 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, 178906 + ... + 179582.

It is an arithmetic number, because the mean of its divisors is an integer number (4606784).

Almost surely, 2^121348188 is an apocalyptic number.

121348188 is a gapful number since it is divisible by the number (18) 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 121348188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165844224).

121348188 is an abundant number, since it is smaller than the sum of its proper divisors (210340260).

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

121348188 is a wasteful number, since it uses less digits than its factorization.

121348188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1078 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 121348188 is about 11015.8153579297. The cubic root of 121348188 is about 495.0827165106.

The spelling of 121348188 in words is "one hundred twenty-one million, three hundred forty-eight thousand, one hundred eighty-eight".