125056143 has 40 divisors (see below), whose sum is σ = 193197312. Its totient is φ = 80571024.

The previous prime is 125056133. The next prime is 125056163. The reversal of 125056143 is 341650521.

125056143 is a `hidden beast` number, since 12 + 50 + 561 + 43 = 666.

It is not a de Polignac number, because 125056143 - 2²¹ = 122958991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125056133) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 407196 + ... + 407502.

Almost surely, 2^125056143 is an apocalyptic number.

125056143 is a deficient number, since it is larger than the sum of its proper divisors (68141169).

125056143 is a wasteful number, since it uses less digits than its factorization.

125056143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 125056143 is about 11182.8503969247. The cubic root of 125056143 is about 500.0748461289.

The spelling of 125056143 in words is "one hundred twenty-five million, fifty-six thousand, one hundred forty-three".