121569234 has 16 divisors (see below), whose sum is σ = 243384960. Its totient is φ = 40482000.

The previous prime is 121569233. The next prime is 121569241. The reversal of 121569234 is 432965121.

It is a junction number, because it is equal to n+sod(n) for n = 121569195 and 121569204.

It is not an unprimeable number, because it can be changed into a prime (121569233) 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, 3517 + ... + 15984.

It is an arithmetic number, because the mean of its divisors is an integer number (15211560).

Almost surely, 2^121569234 is an apocalyptic number.

121569234 is an abundant number, since it is smaller than the sum of its proper divisors (121815726).

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

121569234 is a wasteful number, since it uses less digits than its factorization.

121569234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20545.

The product of its digits is 12960, while the sum is 33.

The square root of 121569234 is about 11025.8439132794. The cubic root of 121569234 is about 495.3831458622.

The spelling of 121569234 in words is "one hundred twenty-one million, five hundred sixty-nine thousand, two hundred thirty-four".