121888633 has 2 divisors, whose sum is σ = 121888634. Its totient is φ = 121888632.

The previous prime is 121888607. The next prime is 121888639. The reversal of 121888633 is 336888121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103978809 + 17909824 = 10197^2 + 4232^2 .

It is a cyclic number.

It is not a de Polignac number, because 121888633 - 2²¹ = 119791481 is a prime.

It is not a weakly prime, because it can be changed into another prime (121888639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60944316 + 60944317.

It is an arithmetic number, because the mean of its divisors is an integer number (60944317).

Almost surely, 2^121888633 is an apocalyptic number.

It is an amenable number.

121888633 is a deficient number, since it is larger than the sum of its proper divisors (1).

121888633 is an equidigital number, since it uses as much as digits as its factorization.

121888633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 40.

The square root of 121888633 is about 11040.3185189559. The cubic root of 121888633 is about 495.8166067249.

The spelling of 121888633 in words is "one hundred twenty-one million, eight hundred eighty-eight thousand, six hundred thirty-three".