121453441 has 4 divisors (see below), whose sum is σ = 121509972. Its totient is φ = 121396912.

The previous prime is 121453433. The next prime is 121453459. The reversal of 121453441 is 144354121.

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 114404416 + 7049025 = 10696^2 + 2655^2 .

It is a cyclic number.

It is not a de Polignac number, because 121453441 - 2³ = 121453433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121453411) 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, 24910 + ... + 29383.

It is an arithmetic number, because the mean of its divisors is an integer number (30377493).

Almost surely, 2^121453441 is an apocalyptic number.

It is an amenable number.

121453441 is a deficient number, since it is larger than the sum of its proper divisors (56531).

121453441 is an equidigital number, since it uses as much as digits as its factorization.

121453441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56530.

The product of its digits is 1920, while the sum is 25.

The square root of 121453441 is about 11020.5916810306. The cubic root of 121453441 is about 495.2258140535.

The spelling of 121453441 in words is "one hundred twenty-one million, four hundred fifty-three thousand, four hundred forty-one".