121104749 has 2 divisors, whose sum is σ = 121104750. Its totient is φ = 121104748.

The previous prime is 121104721. The next prime is 121104773. The reversal of 121104749 is 947401121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75811849 + 45292900 = 8707^2 + 6730^2 .

It is an emirp because it is prime and its reverse (947401121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121104749 - 2²⁴ = 104327533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121104349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60552374 + 60552375.

It is an arithmetic number, because the mean of its divisors is an integer number (60552375).

Almost surely, 2^121104749 is an apocalyptic number.

It is an amenable number.

121104749 is a deficient number, since it is larger than the sum of its proper divisors (1).

121104749 is an equidigital number, since it uses as much as digits as its factorization.

121104749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 121104749 is about 11004.7602881662. The cubic root of 121104749 is about 494.7514298017.

The spelling of 121104749 in words is "one hundred twenty-one million, one hundred four thousand, seven hundred forty-nine".