121750697 has 2 divisors, whose sum is σ = 121750698. Its totient is φ = 121750696.

The previous prime is 121750679. The next prime is 121750703. The reversal of 121750697 is 796057121.

Together with previous prime (121750679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118287376 + 3463321 = 10876^2 + 1861^2 .

It is a cyclic number.

It is not a de Polignac number, because 121750697 - 2⁸ = 121750441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121750697.

It is not a weakly prime, because it can be changed into another prime (121750397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60875348 + 60875349.

It is an arithmetic number, because the mean of its divisors is an integer number (60875349).

Almost surely, 2^121750697 is an apocalyptic number.

It is an amenable number.

121750697 is a deficient number, since it is larger than the sum of its proper divisors (1).

121750697 is an equidigital number, since it uses as much as digits as its factorization.

121750697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 38.

The square root of 121750697 is about 11034.0698293966. The cubic root of 121750697 is about 495.6295048534.

The spelling of 121750697 in words is "one hundred twenty-one million, seven hundred fifty thousand, six hundred ninety-seven".