125406043 has 12 divisors (see below), whose sum is σ = 147883080. Its totient is φ = 106015392.

The previous prime is 125406013. The next prime is 125406053. The reversal of 125406043 is 340604521.

It is not a de Polignac number, because 125406043 - 2²¹ = 123308891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125405999 and 125406017.

It is not an unprimeable number, because it can be changed into a prime (125406013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13953 + ... + 21106.

It is an arithmetic number, because the mean of its divisors is an integer number (12323590).

Almost surely, 2^125406043 is an apocalyptic number.

125406043 is a deficient number, since it is larger than the sum of its proper divisors (22477037).

125406043 is an equidigital number, since it uses as much as digits as its factorization.

125406043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35146 (or 35139 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 125406043 is about 11198.4839598939. The cubic root of 125406043 is about 500.5408055146.

The spelling of 125406043 in words is "one hundred twenty-five million, four hundred six thousand, forty-three".