121261429 has 8 divisors (see below), whose sum is σ = 125515520. Its totient is φ = 117028800.

The previous prime is 121261421. The next prime is 121261433. The reversal of 121261429 is 924162121.

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 121261429 - 2³ = 121261421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121261397 and 121261406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121261421) 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, 6589 + ... + 16909.

It is an arithmetic number, because the mean of its divisors is an integer number (15689440).

Almost surely, 2^121261429 is an apocalyptic number.

It is an amenable number.

121261429 is a deficient number, since it is larger than the sum of its proper divisors (4254091).

121261429 is a wasteful number, since it uses less digits than its factorization.

121261429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10731.

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

The square root of 121261429 is about 11011.8767247005. The cubic root of 121261429 is about 494.9647004042.

The spelling of 121261429 in words is "one hundred twenty-one million, two hundred sixty-one thousand, four hundred twenty-nine".