121344172 has 6 divisors (see below), whose sum is σ = 212352308. Its totient is φ = 60672084.

The previous prime is 121344163. The next prime is 121344191. The reversal of 121344172 is 271443121.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15168018 + ... + 15168025.

Almost surely, 2^121344172 is an apocalyptic number.

It is an amenable number.

121344172 is a deficient number, since it is larger than the sum of its proper divisors (91008136).

121344172 is a wasteful number, since it uses less digits than its factorization.

121344172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30336047 (or 30336045 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 121344172 is about 11015.6330730467. The cubic root of 121344172 is about 495.0772548877.

Adding to 121344172 its reverse (271443121), we get a palindrome (392787293).

The spelling of 121344172 in words is "one hundred twenty-one million, three hundred forty-four thousand, one hundred seventy-two".