125143271 has 4 divisors (see below), whose sum is σ = 136519944. Its totient is φ = 113766600.

The previous prime is 125143267. The next prime is 125143283. The reversal of 125143271 is 172341521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172341521 = 11 ⋅15667411.

It is a cyclic number.

It is not a de Polignac number, because 125143271 - 2² = 125143267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125143271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125143211) 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, 5688320 + ... + 5688341.

It is an arithmetic number, because the mean of its divisors is an integer number (34129986).

Almost surely, 2^125143271 is an apocalyptic number.

125143271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

125143271 is a deficient number, since it is larger than the sum of its proper divisors (11376673).

125143271 is a wasteful number, since it uses less digits than its factorization.

125143271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11376672.

The product of its digits is 1680, while the sum is 26.

The square root of 125143271 is about 11186.7453265014. The cubic root of 125143271 is about 500.1909550630.

Adding to 125143271 its reverse (172341521), we get a palindrome (297484792).

The spelling of 125143271 in words is "one hundred twenty-five million, one hundred forty-three thousand, two hundred seventy-one".