125467945 has 4 divisors (see below), whose sum is σ = 150561540. Its totient is φ = 100374352.

The previous prime is 125467919. The next prime is 125467961. The reversal of 125467945 is 549764521.

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 86192656 + 39275289 = 9284^2 + 6267^2 .

It is a cyclic number.

It is not a de Polignac number, because 125467945 - 2¹⁹ = 124943657 is a prime.

It is an unprimeable number.

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, 12546790 + ... + 12546799.

It is an arithmetic number, because the mean of its divisors is an integer number (37640385).

Almost surely, 2^125467945 is an apocalyptic number.

It is an amenable number.

125467945 is a deficient number, since it is larger than the sum of its proper divisors (25093595).

125467945 is an equidigital number, since it uses as much as digits as its factorization.

125467945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25093594.

The product of its digits is 302400, while the sum is 43.

The square root of 125467945 is about 11201.2474751699. The cubic root of 125467945 is about 500.6231497129.

The spelling of 125467945 in words is "one hundred twenty-five million, four hundred sixty-seven thousand, nine hundred forty-five".