125603023 has 24 divisors (see below), whose sum is σ = 164209248. Its totient is φ = 95046336.

The previous prime is 125603011. The next prime is 125603039. The reversal of 125603023 is 320306521.

It is a de Polignac number, because none of the positive numbers 2^k-125603023 is a prime.

It is a super-2 number, since 2×125603023² = 31552238773477058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125602985 and 125603003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125603083) 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 23 ways as a sum of consecutive naturals, for example, 10365 + ... + 18937.

It is an arithmetic number, because the mean of its divisors is an integer number (6842052).

Almost surely, 2^125603023 is an apocalyptic number.

125603023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125603023 is a deficient number, since it is larger than the sum of its proper divisors (38606225).

125603023 is a wasteful number, since it uses less digits than its factorization.

125603023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8623 (or 8616 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 125603023 is about 11207.2754494569. The cubic root of 125603023 is about 500.8027411901.

Adding to 125603023 its reverse (320306521), we get a palindrome (445909544).

The spelling of 125603023 in words is "one hundred twenty-five million, six hundred three thousand, twenty-three".