121154413 has 2 divisors, whose sum is σ = 121154414. Its totient is φ = 121154412.

The previous prime is 121154401. The next prime is 121154447. The reversal of 121154413 is 314451121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62125924 + 59028489 = 7882^2 + 7683^2 .

It is a cyclic number.

It is not a de Polignac number, because 121154413 - 2⁵ = 121154381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121154513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60577206 + 60577207.

It is an arithmetic number, because the mean of its divisors is an integer number (60577207).

Almost surely, 2^121154413 is an apocalyptic number.

It is an amenable number.

121154413 is a deficient number, since it is larger than the sum of its proper divisors (1).

121154413 is an equidigital number, since it uses as much as digits as its factorization.

121154413 is an evil number, because the sum of its binary digits is even.

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

The square root of 121154413 is about 11007.0165349199. The cubic root of 121154413 is about 494.8190516391.

The spelling of 121154413 in words is "one hundred twenty-one million, one hundred fifty-four thousand, four hundred thirteen".