121325289 has 12 divisors (see below), whose sum is σ = 167157648. Its totient is φ = 78272520.

The previous prime is 121325287. The next prime is 121325291. The reversal of 121325289 is 982523121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121325287) and next prime (121325291).

It is not a de Polignac number, because 121325289 - 2¹ = 121325287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121325287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18159 + ... + 23924.

It is an arithmetic number, because the mean of its divisors is an integer number (13929804).

Almost surely, 2^121325289 is an apocalyptic number.

It is an amenable number.

121325289 is a deficient number, since it is larger than the sum of its proper divisors (45832359).

121325289 is an equidigital number, since it uses as much as digits as its factorization.

121325289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42148 (or 42117 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 121325289 is about 11014.7759396186. The cubic root of 121325289 is about 495.0515730369.

The spelling of 121325289 in words is "one hundred twenty-one million, three hundred twenty-five thousand, two hundred eighty-nine".