122471749 has 2 divisors, whose sum is σ = 122471750. Its totient is φ = 122471748.

The previous prime is 122471693. The next prime is 122471759. The reversal of 122471749 is 947174221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119749249 + 2722500 = 10943^2 + 1650^2 .

It is a cyclic number.

It is not a de Polignac number, because 122471749 - 2¹³ = 122463557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122471759) 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, 61235874 + 61235875.

It is an arithmetic number, because the mean of its divisors is an integer number (61235875).

Almost surely, 2^122471749 is an apocalyptic number.

It is an amenable number.

122471749 is a deficient number, since it is larger than the sum of its proper divisors (1).

122471749 is an equidigital number, since it uses as much as digits as its factorization.

122471749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 37.

The square root of 122471749 is about 11066.6954869103. The cubic root of 122471749 is about 496.6060124921.

The spelling of 122471749 in words is "one hundred twenty-two million, four hundred seventy-one thousand, seven hundred forty-nine".