125420543 has 8 divisors (see below), whose sum is σ = 132947568. Its totient is φ = 117910144.

The previous prime is 125420521. The next prime is 125420567. The reversal of 125420543 is 345024521.

It is a happy number.

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 125420543 - 2⁸ = 125420287 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 (125420593) 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, 13580 + ... + 20862.

It is an arithmetic number, because the mean of its divisors is an integer number (16618446).

Almost surely, 2^125420543 is an apocalyptic number.

125420543 is a deficient number, since it is larger than the sum of its proper divisors (7527025).

125420543 is a wasteful number, since it uses less digits than its factorization.

125420543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8313.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 125420543 is about 11199.1313502432. The cubic root of 125420543 is about 500.5600963499.

The spelling of 125420543 in words is "one hundred twenty-five million, four hundred twenty thousand, five hundred forty-three".