9645142 has 24 divisors (see below), whose sum is σ = 16387056. Its totient is φ = 4224528.

The previous prime is 9645133. The next prime is 9645149. The reversal of 9645142 is 2415469.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9645149) 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 11 ways as a sum of consecutive naturals, for example, 75883 + ... + 76009.

It is an arithmetic number, because the mean of its divisors is an integer number (682794).

Almost surely, 2^9645142 is an apocalyptic number.

9645142 is a deficient number, since it is larger than the sum of its proper divisors (6741914).

9645142 is a wasteful number, since it uses less digits than its factorization.

9645142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 165 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 9645142 is about 3105.6628922019. The cubic root of 9645142 is about 212.8643217425.

The spelling of 9645142 in words is "nine million, six hundred forty-five thousand, one hundred forty-two".