121686948 has 120 divisors (see below), whose sum is σ = 332728704. Its totient is φ = 38750400.

The previous prime is 121686911. The next prime is 121686949. The reversal of 121686948 is 849686121.

It is not an unprimeable number, because it can be changed into a prime (121686949) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 928843 + ... + 928973.

Almost surely, 2^121686948 is an apocalyptic number.

121686948 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 121686948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166364352).

121686948 is an abundant number, since it is smaller than the sum of its proper divisors (211041756).

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

121686948 is a wasteful number, since it uses less digits than its factorization.

121686948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 244 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 121686948 is about 11031.1807164963. The cubic root of 121686948 is about 495.5429854269.

The spelling of 121686948 in words is "one hundred twenty-one million, six hundred eighty-six thousand, nine hundred forty-eight".