121552073 has 2 divisors, whose sum is σ = 121552074. Its totient is φ = 121552072.

The previous prime is 121552043. The next prime is 121552087. The reversal of 121552073 is 370255121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116920969 + 4631104 = 10813^2 + 2152^2 .

It is a cyclic number.

It is not a de Polignac number, because 121552073 - 2²² = 117357769 is a prime.

It is not a weakly prime, because it can be changed into another prime (121552043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60776036 + 60776037.

It is an arithmetic number, because the mean of its divisors is an integer number (60776037).

Almost surely, 2^121552073 is an apocalyptic number.

It is an amenable number.

121552073 is a deficient number, since it is larger than the sum of its proper divisors (1).

121552073 is an equidigital number, since it uses as much as digits as its factorization.

121552073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 121552073 is about 11025.0656687387. The cubic root of 121552073 is about 495.3598349472.

The spelling of 121552073 in words is "one hundred twenty-one million, five hundred fifty-two thousand, seventy-three".