126149125 has 8 divisors (see below), whose sum is σ = 157434264. Its totient is φ = 100919200.

The previous prime is 126149119. The next prime is 126149131. The reversal of 126149125 is 521941621.

It is an interprime number because it is at equal distance from previous prime (126149119) and next prime (126149131).

It can be written as a sum of positive squares in 4 ways, for example, as 20511841 + 105637284 = 4529^2 + 10278^2 .

It is not a de Polignac number, because 126149125 - 2³ = 126149117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 504472 + ... + 504721.

It is an arithmetic number, because the mean of its divisors is an integer number (19679283).

Almost surely, 2^126149125 is an apocalyptic number.

It is an amenable number.

126149125 is a deficient number, since it is larger than the sum of its proper divisors (31285139).

126149125 is an equidigital number, since it uses as much as digits as its factorization.

126149125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009208 (or 1009198 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 126149125 is about 11231.6127515153. The cubic root of 126149125 is about 501.5274954301.

The spelling of 126149125 in words is "one hundred twenty-six million, one hundred forty-nine thousand, one hundred twenty-five".