121764027 has 32 divisors (see below), whose sum is σ = 213073920. Its totient is φ = 59922720.

The previous prime is 121763969. The next prime is 121764031. The reversal of 121764027 is 720467121.

It is not a de Polignac number, because 121764027 - 2⁶ = 121763963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121763985 and 121764003.

It is not an unprimeable number, because it can be changed into a prime (121764427) 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, 9483 + ... + 18260.

It is an arithmetic number, because the mean of its divisors is an integer number (6658560).

Almost surely, 2^121764027 is an apocalyptic number.

121764027 is a deficient number, since it is larger than the sum of its proper divisors (91309893).

121764027 is a wasteful number, since it uses less digits than its factorization.

121764027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27783.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 121764027 is about 11034.6738510932. The cubic root of 121764027 is about 495.6475923617.

The spelling of 121764027 in words is "one hundred twenty-one million, seven hundred sixty-four thousand, twenty-seven".