121932755 has 32 divisors (see below), whose sum is σ = 178899840. Its totient is φ = 77875200.

The previous prime is 121932751. The next prime is 121932799. The reversal of 121932755 is 557239121.

It is not a de Polignac number, because 121932755 - 2² = 121932751 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (121932751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59081 + ... + 61109.

It is an arithmetic number, because the mean of its divisors is an integer number (5590620).

Almost surely, 2^121932755 is an apocalyptic number.

121932755 is a deficient number, since it is larger than the sum of its proper divisors (56967085).

121932755 is a wasteful number, since it uses less digits than its factorization.

121932755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159.

The product of its digits is 18900, while the sum is 35.

The square root of 121932755 is about 11042.3165594906. The cubic root of 121932755 is about 495.8764257599.

The spelling of 121932755 in words is "one hundred twenty-one million, nine hundred thirty-two thousand, seven hundred fifty-five".