125775541 has 4 divisors (see below), whose sum is σ = 125799052. Its totient is φ = 125752032.

The previous prime is 125775521. The next prime is 125775547. The reversal of 125775541 is 145577521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 109202500 = 4071^2 + 10450^2 .

It is a cyclic number.

It is not a de Polignac number, because 125775541 - 2⁵ = 125775509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125775541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125775547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595 + ... + 15871.

It is an arithmetic number, because the mean of its divisors is an integer number (31449763).

Almost surely, 2^125775541 is an apocalyptic number.

It is an amenable number.

125775541 is a deficient number, since it is larger than the sum of its proper divisors (23511).

125775541 is an equidigital number, since it uses as much as digits as its factorization.

125775541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23510.

The product of its digits is 49000, while the sum is 37.

The square root of 125775541 is about 11214.9695050856. The cubic root of 125775541 is about 501.0319234694.

The spelling of 125775541 in words is "one hundred twenty-five million, seven hundred seventy-five thousand, five hundred forty-one".