121429664 has 48 divisors (see below), whose sum is σ = 244490400. Its totient is φ = 59354880.

The previous prime is 121429663. The next prime is 121429669. The reversal of 121429664 is 466924121.

It is not an unprimeable number, because it can be changed into a prime (121429663) 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, 347762 + ... + 348110.

It is an arithmetic number, because the mean of its divisors is an integer number (5093550).

Almost surely, 2^121429664 is an apocalyptic number.

It is an amenable number.

121429664 is an abundant number, since it is smaller than the sum of its proper divisors (123060736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121429664 is a wasteful number, since it uses less digits than its factorization.

121429664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 565 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 121429664 is about 11019.5128748961. The cubic root of 121429664 is about 495.1934950772.

The spelling of 121429664 in words is "one hundred twenty-one million, four hundred twenty-nine thousand, six hundred sixty-four".