125001273 has 8 divisors (see below), whose sum is σ = 167772736. Its totient is φ = 82782000.

The previous prime is 125001271. The next prime is 125001307. The reversal of 125001273 is 372100521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125001273 - 2¹ = 125001271 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125001271) 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 7 ways as a sum of consecutive naturals, for example, 137518 + ... + 138423.

It is an arithmetic number, because the mean of its divisors is an integer number (20971592).

Almost surely, 2^125001273 is an apocalyptic number.

It is an amenable number.

125001273 is a deficient number, since it is larger than the sum of its proper divisors (42771463).

125001273 is a wasteful number, since it uses less digits than its factorization.

125001273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276095.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 125001273 is about 11180.3968176447. The cubic root of 125001273 is about 500.0016973276.

Adding to 125001273 its reverse (372100521), we get a palindrome (497101794).

The spelling of 125001273 in words is "one hundred twenty-five million, one thousand, two hundred seventy-three".