121754345 has 4 divisors (see below), whose sum is σ = 146105220. Its totient is φ = 97403472.

The previous prime is 121754273. The next prime is 121754351. The reversal of 121754345 is 543457121.

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 31181056 + 90573289 = 5584^2 + 9517^2 .

It is a cyclic number.

It is not a de Polignac number, because 121754345 - 2¹⁰ = 121753321 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12175430 + ... + 12175439.

It is an arithmetic number, because the mean of its divisors is an integer number (36526305).

Almost surely, 2^121754345 is an apocalyptic number.

It is an amenable number.

121754345 is a deficient number, since it is larger than the sum of its proper divisors (24350875).

121754345 is an equidigital number, since it uses as much as digits as its factorization.

121754345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24350874.

The product of its digits is 16800, while the sum is 32.

The square root of 121754345 is about 11034.2351343444. The cubic root of 121754345 is about 495.6344549644.

The spelling of 121754345 in words is "one hundred twenty-one million, seven hundred fifty-four thousand, three hundred forty-five".