942109 has 4 divisors (see below), whose sum is σ = 1076704. Its totient is φ = 807516.

The previous prime is 942101. The next prime is 942113. The reversal of 942109 is 901249.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 942109 - 2³ = 942101 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 (942101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67287 + ... + 67300.

It is an arithmetic number, because the mean of its divisors is an integer number (269176).

2⁹⁴²¹⁰⁹ is an apocalyptic number.

It is an amenable number.

942109 is a deficient number, since it is larger than the sum of its proper divisors (134595).

942109 is a wasteful number, since it uses less digits than its factorization.

942109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134594.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 942109 is about 970.6229958125. The cubic root of 942109 is about 98.0318166858.

The spelling of 942109 in words is "nine hundred forty-two thousand, one hundred nine".