121732685 has 4 divisors (see below), whose sum is σ = 146079228. Its totient is φ = 97386144.

The previous prime is 121732669. The next prime is 121732693. The reversal of 121732685 is 586237121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24631369 + 97101316 = 4963^2 + 9854^2 .

It is a cyclic number.

It is not a de Polignac number, because 121732685 - 2⁴ = 121732669 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12173264 + ... + 12173273.

It is an arithmetic number, because the mean of its divisors is an integer number (36519807).

Almost surely, 2^121732685 is an apocalyptic number.

It is an amenable number.

121732685 is a deficient number, since it is larger than the sum of its proper divisors (24346543).

121732685 is an equidigital number, since it uses as much as digits as its factorization.

121732685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24346542.

The product of its digits is 20160, while the sum is 35.

The square root of 121732685 is about 11033.2535999133. The cubic root of 121732685 is about 495.6050622311.

The spelling of 121732685 in words is "one hundred twenty-one million, seven hundred thirty-two thousand, six hundred eighty-five".