121162429 has 2 divisors, whose sum is σ = 121162430. Its totient is φ = 121162428.

The previous prime is 121162427. The next prime is 121162463. The reversal of 121162429 is 924261121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118265625 + 2896804 = 10875^2 + 1702^2 .

It is a cyclic number.

It is not a de Polignac number, because 121162429 - 2¹ = 121162427 is a prime.

Together with 121162427, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 121162397 and 121162406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121162427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60581214 + 60581215.

It is an arithmetic number, because the mean of its divisors is an integer number (60581215).

Almost surely, 2^121162429 is an apocalyptic number.

It is an amenable number.

121162429 is a deficient number, since it is larger than the sum of its proper divisors (1).

121162429 is an equidigital number, since it uses as much as digits as its factorization.

121162429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 121162429 is about 11007.3806602661. The cubic root of 121162429 is about 494.8299643852.

The spelling of 121162429 in words is "one hundred twenty-one million, one hundred sixty-two thousand, four hundred twenty-nine".