125554143 has 16 divisors (see below), whose sum is σ = 196672896. Its totient is φ = 70239840.

The previous prime is 125554141. The next prime is 125554193. The reversal of 125554143 is 341455521.

It is not a de Polignac number, because 125554143 - 2¹ = 125554141 is a prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 125554143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125554141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145905 + ... + 146762.

It is an arithmetic number, because the mean of its divisors is an integer number (12292056).

Almost surely, 2^125554143 is an apocalyptic number.

125554143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125554143 is a deficient number, since it is larger than the sum of its proper divisors (71118753).

125554143 is a wasteful number, since it uses less digits than its factorization.

125554143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292694.

The product of its digits is 12000, while the sum is 30.

The square root of 125554143 is about 11205.0945109803. The cubic root of 125554143 is about 500.7377681941.

The spelling of 125554143 in words is "one hundred twenty-five million, five hundred fifty-four thousand, one hundred forty-three".