9142309 has 8 divisors (see below), whose sum is σ = 9995328. Its totient is φ = 8292960.

The previous prime is 9142297. The next prime is 9142313. The reversal of 9142309 is 9032419.

It is a happy number.

9142309 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 9142309 - 2¹⁷ = 9011237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9142369) 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, 9289 + ... + 10225.

It is an arithmetic number, because the mean of its divisors is an integer number (1249416).

Almost surely, 2^9142309 is an apocalyptic number.

It is an amenable number.

9142309 is a deficient number, since it is larger than the sum of its proper divisors (853019).

9142309 is a wasteful number, since it uses less digits than its factorization.

9142309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 9142309 is about 3023.6251421100. The cubic root of 9142309 is about 209.0990045499.

It can be divided in two parts, 914 and 2309, that added together give a palindrome (3223).

The spelling of 9142309 in words is "nine million, one hundred forty-two thousand, three hundred nine".