121235144 has 16 divisors (see below), whose sum is σ = 228140700. Its totient is φ = 60397632.

The previous prime is 121235111. The next prime is 121235171. The reversal of 121235144 is 441532121.

It can be written as a sum of positive squares in 2 ways, for example, as 114276100 + 6959044 = 10690^2 + 2638^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25139 + ... + 29570.

Almost surely, 2^121235144 is an apocalyptic number.

It is an amenable number.

121235144 is a deficient number, since it is larger than the sum of its proper divisors (106905556).

121235144 is a wasteful number, since it uses less digits than its factorization.

121235144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54992 (or 54988 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 121235144 is about 11010.6831758979. The cubic root of 121235144 is about 494.9289344634.

Adding to 121235144 its reverse (441532121), we get a palindrome (562767265).

The spelling of 121235144 in words is "one hundred twenty-one million, two hundred thirty-five thousand, one hundred forty-four".