125000006 has 4 divisors (see below), whose sum is σ = 187500012. Its totient is φ = 62500002.

The previous prime is 125000003. The next prime is 125000077. The reversal of 125000006 is 600000521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 600000521 = 2521 ⋅238001.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125000003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31250000 + ... + 31250003.

It is an arithmetic number, because the mean of its divisors is an integer number (46875003).

Almost surely, 2^125000006 is an apocalyptic number.

125000006 is a deficient number, since it is larger than the sum of its proper divisors (62500006).

125000006 is an equidigital number, since it uses as much as digits as its factorization.

125000006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62500005.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 125000006 is about 11180.3401558271. The cubic root of 125000006 is about 500.0000080000. Note that the first 5 decimals are identical.

Adding to 125000006 its reverse (600000521), we get a palindrome (725000527).

The spelling of 125000006 in words is "one hundred twenty-five million, six", and thus it is an aban number.