9145129 has 4 divisors (see below), whose sum is σ = 10451584. Its totient is φ = 7838676.

The previous prime is 9145127. The next prime is 9145139. The reversal of 9145129 is 9215419.

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.

It is a cyclic number.

It is not a de Polignac number, because 9145129 - 2¹ = 9145127 is a prime.

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 9145129.

It is not an unprimeable number, because it can be changed into a prime (9145127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653217 + ... + 653230.

It is an arithmetic number, because the mean of its divisors is an integer number (2612896).

Almost surely, 2^9145129 is an apocalyptic number.

It is an amenable number.

9145129 is a deficient number, since it is larger than the sum of its proper divisors (1306455).

9145129 is a wasteful number, since it uses less digits than its factorization.

9145129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306454.

The product of its digits is 3240, while the sum is 31.

The square root of 9145129 is about 3024.0914338029. The cubic root of 9145129 is about 209.1205016201.

The spelling of 9145129 in words is "nine million, one hundred forty-five thousand, one hundred twenty-nine".