121406929 has 8 divisors (see below), whose sum is σ = 139527360. Its totient is φ = 103480656.

The previous prime is 121406921. The next prime is 121406933. The reversal of 121406929 is 929604121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121406929 - 2³ = 121406921 is a prime.

It is a super-2 number, since 2×121406929² = 29479284818422082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121406894 and 121406903.

It is not an unprimeable number, because it can be changed into a prime (121406921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47194 + ... + 49699.

It is an arithmetic number, because the mean of its divisors is an integer number (17440920).

Almost surely, 2^121406929 is an apocalyptic number.

It is an amenable number.

121406929 is a deficient number, since it is larger than the sum of its proper divisors (18120431).

121406929 is an equidigital number, since it uses as much as digits as its factorization.

121406929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97079.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 121406929 is about 11018.4812474315. The cubic root of 121406929 is about 495.1625884974.

The spelling of 121406929 in words is "one hundred twenty-one million, four hundred six thousand, nine hundred twenty-nine".