121734 has 12 divisors (see below), whose sum is σ = 263796. Its totient is φ = 40572.

The previous prime is 121727. The next prime is 121763. The reversal of 121734 is 437121.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6763 = 121734 / (1 + 2 + 1 + 7 + 3 + 4).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3364 + ... + 3399.

It is an arithmetic number, because the mean of its divisors is an integer number (21983).

2¹²¹⁷³⁴ is an apocalyptic number.

121734 is an abundant number, since it is smaller than the sum of its proper divisors (142062).

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

121734 is a wasteful number, since it uses less digits than its factorization.

121734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6771 (or 6768 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 121734 is about 348.9039982574. The cubic root of 121734 is about 49.5606846792.

Adding to 121734 its reverse (437121), we get a palindrome (558855).

The spelling of 121734 in words is "one hundred twenty-one thousand, seven hundred thirty-four".