125575891 has 16 divisors (see below), whose sum is σ = 147962880. Its totient is φ = 104323680.

The previous prime is 125575861. The next prime is 125575897. The reversal of 125575891 is 198575521.

It is a cyclic number.

It is not a de Polignac number, because 125575891 - 2¹¹ = 125573843 is a prime.

It is a super-3 number, since 3×125575891³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125575897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79770 + ... + 81328.

It is an arithmetic number, because the mean of its divisors is an integer number (9247680).

Almost surely, 2^125575891 is an apocalyptic number.

125575891 is a deficient number, since it is larger than the sum of its proper divisors (22386989).

125575891 is a wasteful number, since it uses less digits than its factorization.

125575891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914.

The product of its digits is 126000, while the sum is 43.

The square root of 125575891 is about 11206.0649203902. The cubic root of 125575891 is about 500.7666784740.

The spelling of 125575891 in words is "one hundred twenty-five million, five hundred seventy-five thousand, eight hundred ninety-one".