121456741 has 6 divisors (see below), whose sum is σ = 141286470. Its totient is φ = 104105736.

The previous prime is 121456739. The next prime is 121456763. The reversal of 121456741 is 147654121.

It can be written as a sum of positive squares in only one way, i.e., 85636516 + 35820225 = 9254^2 + 5985^2 .

It is not a de Polignac number, because 121456741 - 2¹ = 121456739 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 (121456711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1239306 + ... + 1239403.

It is an arithmetic number, because the mean of its divisors is an integer number (23547745).

Almost surely, 2^121456741 is an apocalyptic number.

It is an amenable number.

121456741 is a deficient number, since it is larger than the sum of its proper divisors (19829729).

121456741 is an equidigital number, since it uses as much as digits as its factorization.

121456741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478723 (or 2478716 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 121456741 is about 11020.7413997426. The cubic root of 121456741 is about 495.2302992575.

The spelling of 121456741 in words is "one hundred twenty-one million, four hundred fifty-six thousand, seven hundred forty-one".