121774957 has 2 divisors, whose sum is σ = 121774958. Its totient is φ = 121774956.

The previous prime is 121774951. The next prime is 121774963. The reversal of 121774957 is 759477121.

It is a balanced prime because it is at equal distance from previous prime (121774951) and next prime (121774963).

It can be written as a sum of positive squares in only one way, i.e., 86657481 + 35117476 = 9309^2 + 5926^2 .

It is a cyclic number.

It is not a de Polignac number, because 121774957 - 2¹¹ = 121772909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121774951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60887478 + 60887479.

It is an arithmetic number, because the mean of its divisors is an integer number (60887479).

Almost surely, 2^121774957 is an apocalyptic number.

It is an amenable number.

121774957 is a deficient number, since it is larger than the sum of its proper divisors (1).

121774957 is an equidigital number, since it uses as much as digits as its factorization.

121774957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 43.

The square root of 121774957 is about 11035.1690970279. The cubic root of 121774957 is about 495.6624223193.

The spelling of 121774957 in words is "one hundred twenty-one million, seven hundred seventy-four thousand, nine hundred fifty-seven".