125149 has 2 divisors, whose sum is σ = 125150. Its totient is φ = 125148.

The previous prime is 125141. The next prime is 125183. The reversal of 125149 is 941521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101124 + 24025 = 318^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 125149 - 2³ = 125141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125141) 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, 62574 + 62575.

It is an arithmetic number, because the mean of its divisors is an integer number (62575).

2¹²⁵¹⁴⁹ is an apocalyptic number.

It is an amenable number.

125149 is a deficient number, since it is larger than the sum of its proper divisors (1).

125149 is an equidigital number, since it uses as much as digits as its factorization.

125149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 22.

The square root of 125149 is about 353.7640456576. The cubic root of 125149 is about 50.0198587782.

The spelling of 125149 in words is "one hundred twenty-five thousand, one hundred forty-nine".