246139 has 4 divisors (see below), whose sum is σ = 251424. Its totient is φ = 240856.

The previous prime is 246133. The next prime is 246151. The reversal of 246139 is 931642.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931642 = 2 ⋅465821.

It is a cyclic number.

It is not a de Polignac number, because 246139 - 2³ = 246131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (246131) 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 3 ways as a sum of consecutive naturals, for example, 2572 + ... + 2665.

It is an arithmetic number, because the mean of its divisors is an integer number (62856).

2²⁴⁶¹³⁹ is an apocalyptic number.

246139 is a deficient number, since it is larger than the sum of its proper divisors (5285).

246139 is an equidigital number, since it uses as much as digits as its factorization.

246139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284.

The product of its digits is 1296, while the sum is 25.

The square root of 246139 is about 496.1239764414. The cubic root of 246139 is about 62.6700648275.

It can be divided in two parts, 2461 and 39, that added together give a square (2500 = 50²).

The spelling of 246139 in words is "two hundred forty-six thousand, one hundred thirty-nine".