125090543 has 4 divisors (see below), whose sum is σ = 129404040. Its totient is φ = 120777048.

The previous prime is 125090531. The next prime is 125090557. The reversal of 125090543 is 345090521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125090543 - 2¹⁶ = 125025007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4313467 = 125090543 / (1 + 2 + 5 + 0 + 9 + 0 + 5 + 4 + 3).

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125090593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156705 + ... + 2156762.

It is an arithmetic number, because the mean of its divisors is an integer number (32351010).

Almost surely, 2^125090543 is an apocalyptic number.

125090543 is a deficient number, since it is larger than the sum of its proper divisors (4313497).

125090543 is an equidigital number, since it uses as much as digits as its factorization.

125090543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313496.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 125090543 is about 11184.3883605676. The cubic root of 125090543 is about 500.1206948632.

The spelling of 125090543 in words is "one hundred twenty-five million, ninety thousand, five hundred forty-three".