125845149 has 4 divisors (see below), whose sum is σ = 167793536. Its totient is φ = 83896764.

The previous prime is 125845147. The next prime is 125845231. The reversal of 125845149 is 941548521.

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 125845149 - 2¹ = 125845147 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 (125845147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20974189 + ... + 20974194.

It is an arithmetic number, because the mean of its divisors is an integer number (41948384).

Almost surely, 2^125845149 is an apocalyptic number.

It is an amenable number.

125845149 is a deficient number, since it is larger than the sum of its proper divisors (41948387).

125845149 is an equidigital number, since it uses as much as digits as its factorization.

125845149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41948386.

The product of its digits is 57600, while the sum is 39.

The square root of 125845149 is about 11218.0724280065. The cubic root of 125845149 is about 501.1243351791.

The spelling of 125845149 in words is "one hundred twenty-five million, eight hundred forty-five thousand, one hundred forty-nine".