122549 has 12 divisors (see below), whose sum is σ = 148428. Its totient is φ = 100800.

The previous prime is 122533. The next prime is 122557. The reversal of 122549 is 945221.

It can be written as a sum of positive squares in 2 ways, for example, as 4900 + 117649 = 70^2 + 343^2 .

It is not a de Polignac number, because 122549 - 2⁴ = 122533 is a prime.

122549 is a modest number, since divided by 549 gives 122 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1979 + ... + 2039.

It is an arithmetic number, because the mean of its divisors is an integer number (12369).

2¹²²⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

122549 is a deficient number, since it is larger than the sum of its proper divisors (25879).

122549 is an equidigital number, since it uses as much as digits as its factorization.

122549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 109 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 122549 is about 350.0699930014. The cubic root of 122549 is about 49.6710404588.

It can be divided in two parts, 1225 and 49, that multiplied together give a square (60025 = 245²).

The spelling of 122549 in words is "one hundred twenty-two thousand, five hundred forty-nine".