9125881 has 4 divisors (see below), whose sum is σ = 9182032. Its totient is φ = 9069732.

The previous prime is 9125867. The next prime is 9125887. The reversal of 9125881 is 1885219.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1885219 = 7 ⋅269317.

It is a cyclic number.

It is not a de Polignac number, because 9125881 - 2¹¹ = 9123833 is a prime.

It is a super-2 number, since 2×9125881² = 166563408052322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9125887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27831 + ... + 28156.

It is an arithmetic number, because the mean of its divisors is an integer number (2295508).

Almost surely, 2^9125881 is an apocalyptic number.

It is an amenable number.

9125881 is a deficient number, since it is larger than the sum of its proper divisors (56151).

9125881 is a wasteful number, since it uses less digits than its factorization.

9125881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56150.

The product of its digits is 5760, while the sum is 34.

The square root of 9125881 is about 3020.9073140366. The cubic root of 9125881 is about 208.9736847128.

The spelling of 9125881 in words is "nine million, one hundred twenty-five thousand, eight hundred eighty-one".