121144449 has 8 divisors (see below), whose sum is σ = 163738912. Its totient is φ = 79656480.

The previous prime is 121144447. The next prime is 121144451. The reversal of 121144449 is 944441121.

It is an interprime number because it is at equal distance from previous prime (121144447) and next prime (121144451).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121144449 - 2¹ = 121144447 is a prime.

It is a super-3 number, since 3×121144449³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121144447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276367 + ... + 276804.

It is an arithmetic number, because the mean of its divisors is an integer number (20467364).

Almost surely, 2^121144449 is an apocalyptic number.

It is an amenable number.

121144449 is a deficient number, since it is larger than the sum of its proper divisors (42594463).

121144449 is an equidigital number, since it uses as much as digits as its factorization.

121144449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553247.

The product of its digits is 4608, while the sum is 30.

The square root of 121144449 is about 11006.5639052340. The cubic root of 121144449 is about 494.8054862722.

The spelling of 121144449 in words is "one hundred twenty-one million, one hundred forty-four thousand, four hundred forty-nine".