121747230 has 96 divisors (see below), whose sum is σ = 356548608. Its totient is φ = 28555200.

The previous prime is 121747187. The next prime is 121747243. The reversal of 121747230 is 32747121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121747194 and 121747203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28707 + ... + 32673.

It is an arithmetic number, because the mean of its divisors is an integer number (3714048).

Almost surely, 2^121747230 is an apocalyptic number.

121747230 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 121747230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178274304).

121747230 is an abundant number, since it is smaller than the sum of its proper divisors (234801378).

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

121747230 is a wasteful number, since it uses less digits than its factorization.

121747230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022 (or 4019 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 121747230 is about 11033.9127239615. The cubic root of 121747230 is about 495.6248002567.

The spelling of 121747230 in words is "one hundred twenty-one million, seven hundred forty-seven thousand, two hundred thirty".