122194957 has 2 divisors, whose sum is σ = 122194958. Its totient is φ = 122194956.

The previous prime is 122194931. The next prime is 122194967. The reversal of 122194957 is 759491221.

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., 79762761 + 42432196 = 8931^2 + 6514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122194957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122194907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61097478 + 61097479.

It is an arithmetic number, because the mean of its divisors is an integer number (61097479).

Almost surely, 2^122194957 is an apocalyptic number.

It is an amenable number.

122194957 is a deficient number, since it is larger than the sum of its proper divisors (1).

122194957 is an equidigital number, since it uses as much as digits as its factorization.

122194957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 40.

The square root of 122194957 is about 11054.1827830012. The cubic root of 122194957 is about 496.2316125303.

The spelling of 122194957 in words is "one hundred twenty-two million, one hundred ninety-four thousand, nine hundred fifty-seven".