9129131 has 6 divisors (see below), whose sum is σ = 9969996. Its totient is φ = 8290100.

The previous prime is 9129073. The next prime is 9129149. The reversal of 9129131 is 1319219.

9129131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9129131 - 2⁶ = 9129067 is a prime.

It is a super-2 number, since 2×9129131² = 166682065630322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9129131.

It is not an unprimeable number, because it can be changed into a prime (9129151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9566 + ... + 10476.

It is an arithmetic number, because the mean of its divisors is an integer number (1661666).

Almost surely, 2^9129131 is an apocalyptic number.

9129131 is a deficient number, since it is larger than the sum of its proper divisors (840865).

9129131 is an frugal number, since it uses more digits than its factorization.

9129131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833 (or 922 counting only the distinct ones).

The product of its digits is 486, while the sum is 26.

The square root of 9129131 is about 3021.4451840138. The cubic root of 9129131 is about 208.9984890347.

The spelling of 9129131 in words is "nine million, one hundred twenty-nine thousand, one hundred thirty-one".