121541413 has 12 divisors (see below), whose sum is σ = 142505472. Its totient is φ = 103352760.

The previous prime is 121541401. The next prime is 121541419. The reversal of 121541413 is 314145121.

It is not a de Polignac number, because 121541413 - 2²⁵ = 87986981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121541419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3543 + ... + 15988.

It is an arithmetic number, because the mean of its divisors is an integer number (11875456).

Almost surely, 2^121541413 is an apocalyptic number.

It is an amenable number.

121541413 is a deficient number, since it is larger than the sum of its proper divisors (20964059).

121541413 is a wasteful number, since it uses less digits than its factorization.

121541413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19672 (or 19665 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 121541413 is about 11024.5822143064. The cubic root of 121541413 is about 495.3453536634.

Adding to 121541413 its reverse (314145121), we get a palindrome (435686534).

The spelling of 121541413 in words is "one hundred twenty-one million, five hundred forty-one thousand, four hundred thirteen".