9142945 has 16 divisors (see below), whose sum is σ = 12602880. Its totient is φ = 6237504.

The previous prime is 9142927. The next prime is 9142949. The reversal of 9142945 is 5492419.

It is not a de Polignac number, because 9142945 - 2¹³ = 9134753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9142945.

It is not an unprimeable number, because it can be changed into a prime (9142949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7819 + ... + 8911.

It is an arithmetic number, because the mean of its divisors is an integer number (787680).

Almost surely, 2^9142945 is an apocalyptic number.

It is an amenable number.

9142945 is a deficient number, since it is larger than the sum of its proper divisors (3459935).

9142945 is a wasteful number, since it uses less digits than its factorization.

9142945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344.

The product of its digits is 12960, while the sum is 34.

The square root of 9142945 is about 3023.7303120483. The cubic root of 9142945 is about 209.1038532114.

The spelling of 9142945 in words is "nine million, one hundred forty-two thousand, nine hundred forty-five".