121949089 has 8 divisors (see below), whose sum is σ = 126432000. Its totient is φ = 117484752.

The previous prime is 121949053. The next prime is 121949099. The reversal of 121949089 is 980949121.

It is a happy number.

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 121949089 - 2¹⁵ = 121916321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121949039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9502 + ... + 18280.

It is an arithmetic number, because the mean of its divisors is an integer number (15804000).

Almost surely, 2^121949089 is an apocalyptic number.

It is an amenable number.

121949089 is a deficient number, since it is larger than the sum of its proper divisors (4482911).

121949089 is an equidigital number, since it uses as much as digits as its factorization.

121949089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 121949089 is about 11043.0561440210. The cubic root of 121949089 is about 495.8985671549.

The spelling of 121949089 in words is "one hundred twenty-one million, nine hundred forty-nine thousand, eighty-nine".