121178764 has 36 divisors (see below), whose sum is σ = 248264184. Its totient is φ = 51601536.

The previous prime is 121178741. The next prime is 121178767. The reversal of 121178764 is 467871121.

It is not an unprimeable number, because it can be changed into a prime (121178767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30052 + ... + 33844.

Almost surely, 2^121178764 is an apocalyptic number.

121178764 is a gapful number since it is divisible by the number (14) 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 121178764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124132092).

121178764 is an abundant number, since it is smaller than the sum of its proper divisors (127085420).

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

121178764 is a wasteful number, since it uses less digits than its factorization.

121178764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974 (or 3965 counting only the distinct ones).

The product of its digits is 18816, while the sum is 37.

The square root of 121178764 is about 11008.1226373983. The cubic root of 121178764 is about 494.8522008829.

The spelling of 121178764 in words is "one hundred twenty-one million, one hundred seventy-eight thousand, seven hundred sixty-four".