121879450 has 48 divisors (see below), whose sum is σ = 282642624. Its totient is φ = 37987200.

The previous prime is 121879421. The next prime is 121879451. The reversal of 121879450 is 54978121.

It is not an unprimeable number, because it can be changed into a prime (121879451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11979 + ... + 19678.

It is an arithmetic number, because the mean of its divisors is an integer number (5888388).

Almost surely, 2^121879450 is an apocalyptic number.

121879450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121879450 is an abundant number, since it is smaller than the sum of its proper divisors (160763174).

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

121879450 is a wasteful number, since it uses less digits than its factorization.

121879450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31687 (or 31682 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 121879450 is about 11039.9026263822. The cubic root of 121879450 is about 495.8041549260.

The spelling of 121879450 in words is "one hundred twenty-one million, eight hundred seventy-nine thousand, four hundred fifty".