125474775 has 24 divisors (see below), whose sum is σ = 216474240. Its totient is φ = 64009440.

The previous prime is 125474771. The next prime is 125474777. The reversal of 125474775 is 577474521.

It is not a de Polignac number, because 125474775 - 2² = 125474771 is a prime.

It is a super-2 number, since 2×125474775² = 31487838322601250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125474771) 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 23 ways as a sum of consecutive naturals, for example, 34645 + ... + 38094.

It is an arithmetic number, because the mean of its divisors is an integer number (9019760).

Almost surely, 2^125474775 is an apocalyptic number.

125474775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125474775 is a deficient number, since it is larger than the sum of its proper divisors (90999465).

125474775 is a wasteful number, since it uses less digits than its factorization.

125474775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72775 (or 72770 counting only the distinct ones).

The product of its digits is 274400, while the sum is 42.

The square root of 125474775 is about 11201.5523477775. The cubic root of 125474775 is about 500.6322335578.

The spelling of 125474775 in words is "one hundred twenty-five million, four hundred seventy-four thousand, seven hundred seventy-five".