121511152 has 40 divisors (see below), whose sum is σ = 269848800. Its totient is φ = 51923712.

The previous prime is 121511147. The next prime is 121511161. The reversal of 121511152 is 251115121.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42174 + ... + 44962.

It is an arithmetic number, because the mean of its divisors is an integer number (6746220).

Almost surely, 2^121511152 is an apocalyptic number.

It is an amenable number.

121511152 is an abundant number, since it is smaller than the sum of its proper divisors (148337648).

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

121511152 is a wasteful number, since it uses less digits than its factorization.

121511152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193 (or 3187 counting only the distinct ones).

The product of its digits is 100, while the sum is 19.

The square root of 121511152 is about 11023.2096959098. The cubic root of 121511152 is about 495.3042404067.

Adding to 121511152 its reverse (251115121), we get a palindrome (372626273).

The spelling of 121511152 in words is "one hundred twenty-one million, five hundred eleven thousand, one hundred fifty-two".