122030149 has 2 divisors, whose sum is σ = 122030150. Its totient is φ = 122030148.

The previous prime is 122030143. The next prime is 122030201. The reversal of 122030149 is 941030221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107536900 + 14493249 = 10370^2 + 3807^2 .

It is a cyclic number.

It is not a de Polignac number, because 122030149 - 2⁹ = 122029637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122030143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61015074 + 61015075.

It is an arithmetic number, because the mean of its divisors is an integer number (61015075).

Almost surely, 2^122030149 is an apocalyptic number.

It is an amenable number.

122030149 is a deficient number, since it is larger than the sum of its proper divisors (1).

122030149 is an equidigital number, since it uses as much as digits as its factorization.

122030149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 122030149 is about 11046.7257139842. The cubic root of 122030149 is about 496.0084180088.

The spelling of 122030149 in words is "one hundred twenty-two million, thirty thousand, one hundred forty-nine".