121801734 has 48 divisors (see below), whose sum is σ = 272379744. Its totient is φ = 39312000.

The previous prime is 121801733. The next prime is 121801747. The reversal of 121801734 is 437108121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121801698 and 121801707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121801733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110892 + ... + 111984.

It is an arithmetic number, because the mean of its divisors is an integer number (5674578).

Almost surely, 2^121801734 is an apocalyptic number.

121801734 is an abundant number, since it is smaller than the sum of its proper divisors (150578010).

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

121801734 is a wasteful number, since it uses less digits than its factorization.

121801734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 121801734 is about 11036.3822876883. The cubic root of 121801734 is about 495.6987499308.

Adding to 121801734 its reverse (437108121), we get a palindrome (558909855).

The spelling of 121801734 in words is "one hundred twenty-one million, eight hundred one thousand, seven hundred thirty-four".