125140443 has 4 divisors (see below), whose sum is σ = 166853928. Its totient is φ = 83426960.

The previous prime is 125140429. The next prime is 125140453. The reversal of 125140443 is 344041521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125140443 - 2¹⁰ = 125139419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125140453) 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, 20856738 + ... + 20856743.

It is an arithmetic number, because the mean of its divisors is an integer number (41713482).

Almost surely, 2^125140443 is an apocalyptic number.

125140443 is a deficient number, since it is larger than the sum of its proper divisors (41713485).

125140443 is an equidigital number, since it uses as much as digits as its factorization.

125140443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41713484.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 125140443 is about 11186.6189261993. The cubic root of 125140443 is about 500.1871872465.

Adding to 125140443 its reverse (344041521), we get a palindrome (469181964).

It can be divided in two parts, 12 and 5140443, that multiplied together give a square (61685316 = 7854²).

The spelling of 125140443 in words is "one hundred twenty-five million, one hundred forty thousand, four hundred forty-three".