121830587 has 8 divisors (see below), whose sum is σ = 123998400. Its totient is φ = 119680704.

The previous prime is 121830571. The next prime is 121830613. The reversal of 121830587 is 785038121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121830587 - 2⁴ = 121830571 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121830547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9614 + ... + 18332.

It is an arithmetic number, because the mean of its divisors is an integer number (15499800).

Almost surely, 2^121830587 is an apocalyptic number.

121830587 is a deficient number, since it is larger than the sum of its proper divisors (2167813).

121830587 is an equidigital number, since it uses as much as digits as its factorization.

121830587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8965.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 121830587 is about 11037.6893868237. The cubic root of 121830587 is about 495.7378880349.

The spelling of 121830587 in words is "one hundred twenty-one million, eight hundred thirty thousand, five hundred eighty-seven".