125126545 has 8 divisors (see below), whose sum is σ = 158984424. Its totient is φ = 94212864.

The previous prime is 125126543. The next prime is 125126569. The reversal of 125126545 is 545621521.

It can be written as a sum of positive squares in 4 ways, for example, as 18974736 + 106151809 = 4356^2 + 10303^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125126545 - 2¹ = 125126543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125126543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735954 + ... + 736123.

It is an arithmetic number, because the mean of its divisors is an integer number (19873053).

Almost surely, 2^125126545 is an apocalyptic number.

It is an amenable number.

125126545 is a deficient number, since it is larger than the sum of its proper divisors (33857879).

125126545 is a wasteful number, since it uses less digits than its factorization.

125126545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472099.

The product of its digits is 12000, while the sum is 31.

The square root of 125126545 is about 11185.9977203645. The cubic root of 125126545 is about 500.1686697613.

The spelling of 125126545 in words is "one hundred twenty-five million, one hundred twenty-six thousand, five hundred forty-five".