121752691 has 8 divisors (see below), whose sum is σ = 129153744. Its totient is φ = 114378240.

The previous prime is 121752689. The next prime is 121752707. The reversal of 121752691 is 196257121.

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 121752691 - 2¹ = 121752689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121752611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3211 + ... + 15931.

It is an arithmetic number, because the mean of its divisors is an integer number (16144218).

Almost surely, 2^121752691 is an apocalyptic number.

121752691 is a deficient number, since it is larger than the sum of its proper divisors (7401053).

121752691 is a wasteful number, since it uses less digits than its factorization.

121752691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13301.

The product of its digits is 7560, while the sum is 34.

The square root of 121752691 is about 11034.1601855329. The cubic root of 121752691 is about 495.6322106007.

The spelling of 121752691 in words is "one hundred twenty-one million, seven hundred fifty-two thousand, six hundred ninety-one".