121669733 has 2 divisors, whose sum is σ = 121669734. Its totient is φ = 121669732.

The previous prime is 121669721. The next prime is 121669739. The reversal of 121669733 is 337966121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102860164 + 18809569 = 10142^2 + 4337^2 .

It is a cyclic number.

It is not a de Polignac number, because 121669733 - 2⁸ = 121669477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121669739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60834866 + 60834867.

It is an arithmetic number, because the mean of its divisors is an integer number (60834867).

Almost surely, 2^121669733 is an apocalyptic number.

It is an amenable number.

121669733 is a deficient number, since it is larger than the sum of its proper divisors (1).

121669733 is an equidigital number, since it uses as much as digits as its factorization.

121669733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 121669733 is about 11030.4004007108. The cubic root of 121669733 is about 495.5196162407.

The spelling of 121669733 in words is "one hundred twenty-one million, six hundred sixty-nine thousand, seven hundred thirty-three".