121159948 has 48 divisors (see below), whose sum is σ = 266324800. Its totient is φ = 47924352.

The previous prime is 121159943. The next prime is 121159949. The reversal of 121159948 is 849951121.

It is a self number, because there is not a number n which added to its sum of digits gives 121159948.

It is not an unprimeable number, because it can be changed into a prime (121159943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14440 + ... + 21232.

Almost surely, 2^121159948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121159948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133162400).

121159948 is an abundant number, since it is smaller than the sum of its proper divisors (145164852).

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

121159948 is a wasteful number, since it uses less digits than its factorization.

121159948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6831 (or 6815 counting only the distinct ones).

The product of its digits is 25920, while the sum is 40.

The square root of 121159948 is about 11007.2679625782. The cubic root of 121159948 is about 494.8265868763.

The spelling of 121159948 in words is "one hundred twenty-one million, one hundred fifty-nine thousand, nine hundred forty-eight".