121136429 has 8 divisors (see below), whose sum is σ = 123731712. Its totient is φ = 118552720.

The previous prime is 121136399. The next prime is 121136453. The reversal of 121136429 is 924631121.

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 121136429 - 2⁸ = 121136173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121136489) 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, 20192 + ... + 25494.

It is an arithmetic number, because the mean of its divisors is an integer number (15466464).

Almost surely, 2^121136429 is an apocalyptic number.

It is an amenable number.

121136429 is a deficient number, since it is larger than the sum of its proper divisors (2595283).

121136429 is an equidigital number, since it uses as much as digits as its factorization.

121136429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5787.

The product of its digits is 2592, while the sum is 29.

The square root of 121136429 is about 11006.1995711508. The cubic root of 121136429 is about 494.7945670001.

The spelling of 121136429 in words is "one hundred twenty-one million, one hundred thirty-six thousand, four hundred twenty-nine".