94139 has 4 divisors (see below), whose sum is σ = 98256. Its totient is φ = 90024.

The previous prime is 94121. The next prime is 94151. The reversal of 94139 is 93149.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 94139 - 2¹⁶ = 28603 is a prime.

It is a deceptive number, since it divides R₉₄₁₃₈.

It is not an unprimeable number, because it can be changed into a prime (94109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (24564).

2⁹⁴¹³⁹ is an apocalyptic number.

94139 is a deficient number, since it is larger than the sum of its proper divisors (4117).

94139 is a wasteful number, since it uses less digits than its factorization.

94139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116.

The product of its digits is 972, while the sum is 26.

The square root of 94139 is about 306.8207946017. The cubic root of 94139 is about 45.4907601090.

Subtracting from 94139 its reverse (93149), we obtain a triangular number (990 = T₄₄).

The spelling of 94139 in words is "ninety-four thousand, one hundred thirty-nine".