121265089 has 8 divisors (see below), whose sum is σ = 134153280. Its totient is φ = 108687600.

The previous prime is 121265059. The next prime is 121265099. The reversal of 121265089 is 980562121.

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 121265089 - 2⁵ = 121265057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121265009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76854 + ... + 78415.

It is an arithmetic number, because the mean of its divisors is an integer number (16769160).

Almost surely, 2^121265089 is an apocalyptic number.

It is an amenable number.

121265089 is a deficient number, since it is larger than the sum of its proper divisors (12888191).

121265089 is a wasteful number, since it uses less digits than its factorization.

121265089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155351.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 121265089 is about 11012.0429076534. The cubic root of 121265089 is about 494.9696801481.

The spelling of 121265089 in words is "one hundred twenty-one million, two hundred sixty-five thousand, eighty-nine".