121429672 has 32 divisors (see below), whose sum is σ = 280224000. Its totient is φ = 48037824.

The previous prime is 121429669. The next prime is 121429681. The reversal of 121429672 is 276924121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82672 + ... + 84127.

It is an arithmetic number, because the mean of its divisors is an integer number (8757000).

Almost surely, 2^121429672 is an apocalyptic number.

It is an amenable number.

121429672 is an abundant number, since it is smaller than the sum of its proper divisors (158794328).

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

121429672 is a wasteful number, since it uses less digits than its factorization.

121429672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166825 (or 166821 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 121429672 is about 11019.5132378885. The cubic root of 121429672 is about 495.1935059519.

The spelling of 121429672 in words is "one hundred twenty-one million, four hundred twenty-nine thousand, six hundred seventy-two".