125531441 has 8 divisors (see below), whose sum is σ = 145193664. Its totient is φ = 106301520.

The previous prime is 125531387. The next prime is 125531453. The reversal of 125531441 is 144135521.

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 125531441 - 2⁶ = 125531377 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125531441.

It is not an unprimeable number, because it can be changed into a prime (125531641) 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 7 ways as a sum of consecutive naturals, for example, 107450 + ... + 108611.

It is an arithmetic number, because the mean of its divisors is an integer number (18149208).

Almost surely, 2^125531441 is an apocalyptic number.

It is an amenable number.

125531441 is a deficient number, since it is larger than the sum of its proper divisors (19662223).

125531441 is an equidigital number, since it uses as much as digits as its factorization.

125531441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216151.

The product of its digits is 2400, while the sum is 26.

The square root of 125531441 is about 11204.0814438311. The cubic root of 125531441 is about 500.7075861713.

Adding to 125531441 its reverse (144135521), we get a palindrome (269666962).

It can be divided in two parts, 125 and 531441, that multiplied together give a cube (66430125 = 405³).

The spelling of 125531441 in words is "one hundred twenty-five million, five hundred thirty-one thousand, four hundred forty-one".