121608830 has 16 divisors (see below), whose sum is σ = 250166880. Its totient is φ = 41694432.

The previous prime is 121608827. The next prime is 121608857. The reversal of 121608830 is 38806121.

It is a junction number, because it is equal to n+sod(n) for n = 121608793 and 121608802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868565 + ... + 868704.

It is an arithmetic number, because the mean of its divisors is an integer number (15635430).

Almost surely, 2^121608830 is an apocalyptic number.

121608830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121608830 is an abundant number, since it is smaller than the sum of its proper divisors (128558050).

121608830 is a wasteful number, since it uses less digits than its factorization.

121608830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737283.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 121608830 is about 11027.6393666097. The cubic root of 121608830 is about 495.4369233440.

The spelling of 121608830 in words is "one hundred twenty-one million, six hundred eight thousand, eight hundred thirty".