121736124 has 36 divisors (see below), whose sum is σ = 313532856. Its totient is φ = 39812448.

The previous prime is 121736123. The next prime is 121736149. The reversal of 121736124 is 421637121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121736123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29994 + ... + 33809.

It is an arithmetic number, because the mean of its divisors is an integer number (8709246).

Almost surely, 2^121736124 is an apocalyptic number.

It is an amenable number.

121736124 is an abundant number, since it is smaller than the sum of its proper divisors (191796732).

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

121736124 is a wasteful number, since it uses less digits than its factorization.

121736124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63866 (or 63861 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 121736124 is about 11033.4094458603. The cubic root of 121736124 is about 495.6097292049.

The spelling of 121736124 in words is "one hundred twenty-one million, seven hundred thirty-six thousand, one hundred twenty-four".