125030005 has 4 divisors (see below), whose sum is σ = 150036012. Its totient is φ = 100024000.

The previous prime is 125029997. The next prime is 125030039. The reversal of 125030005 is 500030521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24990001 + 100040004 = 4999^2 + 10002^2 .

It is not a de Polignac number, because 125030005 - 2³ = 125029997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12502996 + ... + 12503005.

It is an arithmetic number, because the mean of its divisors is an integer number (37509003).

Almost surely, 2^125030005 is an apocalyptic number.

It is an amenable number.

125030005 is a deficient number, since it is larger than the sum of its proper divisors (25006007).

125030005 is an equidigital number, since it uses as much as digits as its factorization.

125030005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25006006.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 125030005 is about 11181.6816713766. The cubic root of 125030005 is about 500.0400034660.

Adding to 125030005 its reverse (500030521), we get a palindrome (625060526).

The spelling of 125030005 in words is "one hundred twenty-five million, thirty thousand, five".