121450345 has 4 divisors (see below), whose sum is σ = 145740420. Its totient is φ = 97160272.

The previous prime is 121450339. The next prime is 121450349. The reversal of 121450345 is 543054121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52693081 + 68757264 = 7259^2 + 8292^2 .

It is a cyclic number.

It is not a de Polignac number, because 121450345 - 2⁵ = 121450313 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (121450349) 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 3 ways as a sum of consecutive naturals, for example, 12145030 + ... + 12145039.

It is an arithmetic number, because the mean of its divisors is an integer number (36435105).

Almost surely, 2^121450345 is an apocalyptic number.

It is an amenable number.

121450345 is a deficient number, since it is larger than the sum of its proper divisors (24290075).

121450345 is an equidigital number, since it uses as much as digits as its factorization.

121450345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24290074.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 121450345 is about 11020.4512158078. The cubic root of 121450345 is about 495.2216060428.

The spelling of 121450345 in words is "one hundred twenty-one million, four hundred fifty thousand, three hundred forty-five".