125857211 has 8 divisors (see below), whose sum is σ = 129812544. Its totient is φ = 121955200.

The previous prime is 125857181. The next prime is 125857217. The reversal of 125857211 is 112758521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125857211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125857217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8510 + ... + 18003.

It is an arithmetic number, because the mean of its divisors is an integer number (16226568).

Almost surely, 2^125857211 is an apocalyptic number.

125857211 is a deficient number, since it is larger than the sum of its proper divisors (3955333).

125857211 is a wasteful number, since it uses less digits than its factorization.

125857211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26661.

The product of its digits is 5600, while the sum is 32.

The square root of 125857211 is about 11218.6100297675. The cubic root of 125857211 is about 501.1403452482.

The spelling of 125857211 in words is "one hundred twenty-five million, eight hundred fifty-seven thousand, two hundred eleven".