125275477 has 4 divisors (see below), whose sum is σ = 125975520. Its totient is φ = 124575436.

The previous prime is 125275471. The next prime is 125275487. The reversal of 125275477 is 774572521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 774572521 = 389 ⋅1991189.

It is a cyclic number.

It is not a de Polignac number, because 125275477 - 2¹¹ = 125273429 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 (125275471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349753 + ... + 350110.

It is an arithmetic number, because the mean of its divisors is an integer number (31493880).

Almost surely, 2^125275477 is an apocalyptic number.

It is an amenable number.

125275477 is a deficient number, since it is larger than the sum of its proper divisors (700043).

125275477 is an equidigital number, since it uses as much as digits as its factorization.

125275477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700042.

The product of its digits is 137200, while the sum is 40.

The square root of 125275477 is about 11192.6528133414. The cubic root of 125275477 is about 500.3670331740.

It can be divided in two parts, 1252 and 75477, that added together give a square (76729 = 277²).

The spelling of 125275477 in words is "one hundred twenty-five million, two hundred seventy-five thousand, four hundred seventy-seven".