121615733 has 2 divisors, whose sum is σ = 121615734. Its totient is φ = 121615732.

The previous prime is 121615723. The next prime is 121615771. The reversal of 121615733 is 337516121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74528689 + 47087044 = 8633^2 + 6862^2 .

It is a cyclic number.

It is not a de Polignac number, because 121615733 - 2²⁰ = 120567157 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121615696 and 121615705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121615723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60807866 + 60807867.

It is an arithmetic number, because the mean of its divisors is an integer number (60807867).

Almost surely, 2^121615733 is an apocalyptic number.

It is an amenable number.

121615733 is a deficient number, since it is larger than the sum of its proper divisors (1).

121615733 is an equidigital number, since it uses as much as digits as its factorization.

121615733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 29.

The square root of 121615733 is about 11027.9523484643. The cubic root of 121615733 is about 495.4462974889.

The spelling of 121615733 in words is "one hundred twenty-one million, six hundred fifteen thousand, seven hundred thirty-three".