121630624 has 48 divisors (see below), whose sum is σ = 254197440. Its totient is φ = 57164800.

The previous prime is 121630603. The next prime is 121630627. The reversal of 121630624 is 426036121.

It is not an unprimeable number, because it can be changed into a prime (121630627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42024 + ... + 44824.

It is an arithmetic number, because the mean of its divisors is an integer number (5295780).

Almost surely, 2^121630624 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 121630624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127098720).

121630624 is an abundant number, since it is smaller than the sum of its proper divisors (132566816).

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

121630624 is a wasteful number, since it uses less digits than its factorization.

121630624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893 (or 2885 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 121630624 is about 11028.6274758013. The cubic root of 121630624 is about 495.4665179805.

Adding to 121630624 its reverse (426036121), we get a palindrome (547666745).

The spelling of 121630624 in words is "one hundred twenty-one million, six hundred thirty thousand, six hundred twenty-four".