121594889 has 16 divisors (see below), whose sum is σ = 141214080. Its totient is φ = 103731840.

The previous prime is 121594867. The next prime is 121594909. The reversal of 121594889 is 988495121.

It is a cyclic number.

It is not a de Polignac number, because 121594889 - 2¹² = 121590793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121594819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4124 + ... + 16130.

It is an arithmetic number, because the mean of its divisors is an integer number (8825880).

Almost surely, 2^121594889 is an apocalyptic number.

121594889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

121594889 is a deficient number, since it is larger than the sum of its proper divisors (19619191).

121594889 is a wasteful number, since it uses less digits than its factorization.

121594889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12080.

The product of its digits is 207360, while the sum is 47.

The square root of 121594889 is about 11027.0072549174. The cubic root of 121594889 is about 495.4179906451.

The spelling of 121594889 in words is "one hundred twenty-one million, five hundred ninety-four thousand, eight hundred eighty-nine".