121152441 has 4 divisors (see below), whose sum is σ = 161536592. Its totient is φ = 80768292.

The previous prime is 121152403. The next prime is 121152461. The reversal of 121152441 is 144251121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 121152441 - 2⁷ = 121152313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121152461) 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, 20192071 + ... + 20192076.

It is an arithmetic number, because the mean of its divisors is an integer number (40384148).

Almost surely, 2^121152441 is an apocalyptic number.

It is an amenable number.

121152441 is a deficient number, since it is larger than the sum of its proper divisors (40384151).

121152441 is an equidigital number, since it uses as much as digits as its factorization.

121152441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40384150.

The product of its digits is 320, while the sum is 21.

The square root of 121152441 is about 11006.9269553314. The cubic root of 121152441 is about 494.8163669426.

The spelling of 121152441 in words is "one hundred twenty-one million, one hundred fifty-two thousand, four hundred forty-one".