125163003 has 12 divisors (see below), whose sum is σ = 194130600. Its totient is φ = 71521632.

The previous prime is 125163001. The next prime is 125163019. The reversal of 125163003 is 300361521.

It is not a de Polignac number, because 125163003 - 2¹ = 125163001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125163001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425578 + ... + 425871.

It is an arithmetic number, because the mean of its divisors is an integer number (16177550).

Almost surely, 2^125163003 is an apocalyptic number.

125163003 is a deficient number, since it is larger than the sum of its proper divisors (68967597).

125163003 is an equidigital number, since it uses as much as digits as its factorization.

125163003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851466 (or 851459 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 125163003 is about 11187.6272283268. The cubic root of 125163003 is about 500.2172429307.

The spelling of 125163003 in words is "one hundred twenty-five million, one hundred sixty-three thousand, three".