121612753 has 8 divisors (see below), whose sum is σ = 127464768. Its totient is φ = 115807824.

The previous prime is 121612739. The next prime is 121612759. The reversal of 121612753 is 357216121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121612753 - 2¹⁷ = 121481681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121612759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6426 + ... + 16867.

It is an arithmetic number, because the mean of its divisors is an integer number (15933096).

Almost surely, 2^121612753 is an apocalyptic number.

It is an amenable number.

121612753 is a deficient number, since it is larger than the sum of its proper divisors (5852015).

121612753 is a wasteful number, since it uses less digits than its factorization.

121612753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23543.

The product of its digits is 2520, while the sum is 28.

The square root of 121612753 is about 11027.8172364253. The cubic root of 121612753 is about 495.4422507482.

Adding to 121612753 its reverse (357216121), we get a palindrome (478828874).

The spelling of 121612753 in words is "one hundred twenty-one million, six hundred twelve thousand, seven hundred fifty-three".