125440543 has 8 divisors (see below), whose sum is σ = 126494208. Its totient is φ = 124391424.

The previous prime is 125440541. The next prime is 125440571. The reversal of 125440543 is 345044521.

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

It is a cyclic number.

It is not a de Polignac number, because 125440543 - 2¹ = 125440541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125440541) 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, 73071 + ... + 74767.

It is an arithmetic number, because the mean of its divisors is an integer number (15811776).

Almost surely, 2^125440543 is an apocalyptic number.

125440543 is a deficient number, since it is larger than the sum of its proper divisors (1053665).

125440543 is a wasteful number, since it uses less digits than its factorization.

125440543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 125440543 is about 11200.0242410452. The cubic root of 125440543 is about 500.5867019590.

The spelling of 125440543 in words is "one hundred twenty-five million, four hundred forty thousand, five hundred forty-three".