9142905 has 8 divisors (see below), whose sum is σ = 14628672. Its totient is φ = 4876208.

The previous prime is 9142901. The next prime is 9142909. The reversal of 9142905 is 5092419.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9142901) and next prime (9142909).

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

It is a cyclic number.

It is not a de Polignac number, because 9142905 - 2² = 9142901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9142901) 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 7 ways as a sum of consecutive naturals, for example, 304749 + ... + 304778.

It is an arithmetic number, because the mean of its divisors is an integer number (1828584).

Almost surely, 2^9142905 is an apocalyptic number.

It is an amenable number.

9142905 is a deficient number, since it is larger than the sum of its proper divisors (5485767).

9142905 is a wasteful number, since it uses less digits than its factorization.

9142905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609535.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 9142905 is about 3023.7236976946. The cubic root of 9142905 is about 209.1035482707.

The spelling of 9142905 in words is "nine million, one hundred forty-two thousand, nine hundred five".