125507441 has 4 divisors (see below), whose sum is σ = 128899572. Its totient is φ = 122115312.

The previous prime is 125507423. The next prime is 125507443. The reversal of 125507441 is 144705521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144705521 = 349 ⋅414629.

It can be written as a sum of positive squares in 2 ways, for example, as 71910400 + 53597041 = 8480^2 + 7321^2 .

It is a cyclic number.

It is not a de Polignac number, because 125507441 - 2⁶ = 125507377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125507443) 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 3 ways as a sum of consecutive naturals, for example, 1696010 + ... + 1696083.

It is an arithmetic number, because the mean of its divisors is an integer number (32224893).

Almost surely, 2^125507441 is an apocalyptic number.

It is an amenable number.

125507441 is a deficient number, since it is larger than the sum of its proper divisors (3392131).

125507441 is an equidigital number, since it uses as much as digits as its factorization.

125507441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392130.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 125507441 is about 11203.0103543646. The cubic root of 125507441 is about 500.6756745166.

It can be divided in two parts, 12550 and 7441, that added together give a palindrome (19991).

The spelling of 125507441 in words is "one hundred twenty-five million, five hundred seven thousand, four hundred forty-one".