125532761 has 4 divisors (see below), whose sum is σ = 125758692. Its totient is φ = 125306832.

The previous prime is 125532751. The next prime is 125532773. The reversal of 125532761 is 167235521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 167235521 = 2017 ⋅82913.

It can be written as a sum of positive squares in 2 ways, for example, as 43811161 + 81721600 = 6619^2 + 9040^2 .

It is a cyclic number.

It is not a de Polignac number, because 125532761 - 2¹⁰ = 125531737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125532751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112130 + ... + 113243.

It is an arithmetic number, because the mean of its divisors is an integer number (31439673).

Almost surely, 2^125532761 is an apocalyptic number.

It is an amenable number.

125532761 is a deficient number, since it is larger than the sum of its proper divisors (225931).

125532761 is an equidigital number, since it uses as much as digits as its factorization.

125532761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225930.

The product of its digits is 12600, while the sum is 32.

The square root of 125532761 is about 11204.1403507810. The cubic root of 125532761 is about 500.7093411943.

The spelling of 125532761 in words is "one hundred twenty-five million, five hundred thirty-two thousand, seven hundred sixty-one".