9129449285 has 8 divisors (see below), whose sum is σ = 11951279136. Its totient is φ = 6639599440.

The previous prime is 9129449281. The next prime is 9129449321. The reversal of 9129449285 is 5829449219.

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

It is not a de Polignac number, because 9129449285 - 2² = 9129449281 is a prime.

It is a super-2 number, since 2×9129449285² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9129449281) 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, 82994939 + ... + 82995048.

It is an arithmetic number, because the mean of its divisors is an integer number (1493909892).

Almost surely, 2^9129449285 is an apocalyptic number.

It is an amenable number.

9129449285 is a deficient number, since it is larger than the sum of its proper divisors (2821829851).

9129449285 is a wasteful number, since it uses less digits than its factorization.

9129449285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165990003.

The product of its digits is 1866240, while the sum is 53.

The square root of 9129449285 is about 95548.1516566385. The cubic root of 9129449285 is about 2090.0091790078.

It can be divided in two parts, 912944 and 9285, that added together give a palindrome (922229).

The spelling of 9129449285 in words is "nine billion, one hundred twenty-nine million, four hundred forty-nine thousand, two hundred eighty-five".