125908149 has 4 divisors (see below), whose sum is σ = 167877536. Its totient is φ = 83938764.

The previous prime is 125908109. The next prime is 125908157. The reversal of 125908149 is 941809521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 125908149 - 2⁷ = 125908021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125908109) 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 in 3 ways as a sum of consecutive naturals, for example, 20984689 + ... + 20984694.

It is an arithmetic number, because the mean of its divisors is an integer number (41969384).

Almost surely, 2^125908149 is an apocalyptic number.

It is an amenable number.

125908149 is a deficient number, since it is larger than the sum of its proper divisors (41969387).

125908149 is an equidigital number, since it uses as much as digits as its factorization.

125908149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41969386.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 125908149 is about 11220.8800457005. The cubic root of 125908149 is about 501.2079447224.

The spelling of 125908149 in words is "one hundred twenty-five million, nine hundred eight thousand, one hundred forty-nine".