125440143 has 8 divisors (see below), whose sum is σ = 168788400. Its totient is φ = 82859328.

The previous prime is 125440129. The next prime is 125440151. The reversal of 125440143 is 341044521.

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

It is not a de Polignac number, because 125440143 - 2⁵ = 125440111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125440103) 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, 191478 + ... + 192131.

It is an arithmetic number, because the mean of its divisors is an integer number (21098550).

Almost surely, 2^125440143 is an apocalyptic number.

125440143 is a deficient number, since it is larger than the sum of its proper divisors (43348257).

125440143 is a wasteful number, since it uses less digits than its factorization.

125440143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383721.

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

The square root of 125440143 is about 11200.0063839268. The cubic root of 125440143 is about 500.5861698745.

Adding to 125440143 its reverse (341044521), we get a palindrome (466484664).

The spelling of 125440143 in words is "one hundred twenty-five million, four hundred forty thousand, one hundred forty-three".