121924530 has 96 divisors (see below), whose sum is σ = 390184704. Its totient is φ = 25723008.

The previous prime is 121924511. The next prime is 121924531. The reversal of 121924530 is 35429121.

121924530 is a `hidden beast` number, since 121 + 9 + 2 + 4 + 530 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 121924494 and 121924503.

It is not an unprimeable number, because it can be changed into a prime (121924531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 747 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (4064424).

Almost surely, 2^121924530 is an apocalyptic number.

121924530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121924530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195092352).

121924530 is an abundant number, since it is smaller than the sum of its proper divisors (268260174).

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

121924530 is a wasteful number, since it uses less digits than its factorization.

121924530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14920 (or 14917 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 121924530 is about 11041.9441223002. The cubic root of 121924530 is about 495.8652756925.

The spelling of 121924530 in words is "one hundred twenty-one million, nine hundred twenty-four thousand, five hundred thirty".