125403673 has 4 divisors (see below), whose sum is σ = 125426448. Its totient is φ = 125380900.

The previous prime is 125403643. The next prime is 125403689. The reversal of 125403673 is 376304521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 376304521 = 13523 ⋅27827.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125403673 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125403643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2598 + ... + 16048.

It is an arithmetic number, because the mean of its divisors is an integer number (31356612).

Almost surely, 2^125403673 is an apocalyptic number.

It is an amenable number.

125403673 is a deficient number, since it is larger than the sum of its proper divisors (22775).

125403673 is an equidigital number, since it uses as much as digits as its factorization.

125403673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22774.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 125403673 is about 11198.3781414989. The cubic root of 125403673 is about 500.5376523194.

The spelling of 125403673 in words is "one hundred twenty-five million, four hundred three thousand, six hundred seventy-three".