121452143 has 4 divisors (see below), whose sum is σ = 121474440. Its totient is φ = 121429848.

The previous prime is 121452137. The next prime is 121452181. The reversal of 121452143 is 341254121.

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

It is a cyclic number.

It is not a de Polignac number, because 121452143 - 2¹⁴ = 121435759 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121452113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053 + ... + 15881.

It is an arithmetic number, because the mean of its divisors is an integer number (30368610).

Almost surely, 2^121452143 is an apocalyptic number.

121452143 is a deficient number, since it is larger than the sum of its proper divisors (22297).

121452143 is an equidigital number, since it uses as much as digits as its factorization.

121452143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22296.

The product of its digits is 960, while the sum is 23.

The square root of 121452143 is about 11020.5327911131. The cubic root of 121452143 is about 495.2240498510.

The spelling of 121452143 in words is "one hundred twenty-one million, four hundred fifty-two thousand, one hundred forty-three".