125430543 has 18 divisors (see below), whose sum is σ = 210758184. Its totient is φ = 71674344.

The previous prime is 125430541. The next prime is 125430553. The reversal of 125430543 is 345034521.

It is not a de Polignac number, because 125430543 - 2¹ = 125430541 is a prime.

It is a super-2 number, since 2×125430543² = 31465642234549698, which contains 22 as substring.

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 (125430541) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 141771 + ... + 142652.

It is an arithmetic number, because the mean of its divisors is an integer number (11708788).

Almost surely, 2^125430543 is an apocalyptic number.

125430543 is a deficient number, since it is larger than the sum of its proper divisors (85327641).

125430543 is a wasteful number, since it uses less digits than its factorization.

125430543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284443 (or 284433 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 125430543 is about 11199.5778045425. The cubic root of 125430543 is about 500.5733995080.

The spelling of 125430543 in words is "one hundred twenty-five million, four hundred thirty thousand, five hundred forty-three".