6161839 has 4 divisors (see below), whose sum is σ = 6360640. Its totient is φ = 5963040.

The previous prime is 6161819. The next prime is 6161873. The reversal of 6161839 is 9381616.

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 6161839 - 2¹³ = 6153647 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 (6161819) 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, 99354 + ... + 99415.

It is an arithmetic number, because the mean of its divisors is an integer number (1590160).

Almost surely, 2^6161839 is an apocalyptic number.

6161839 is a deficient number, since it is larger than the sum of its proper divisors (198801).

6161839 is a wasteful number, since it uses less digits than its factorization.

6161839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198800.

The product of its digits is 7776, while the sum is 34.

The square root of 6161839 is about 2482.3051786595. The cubic root of 6161839 is about 183.3313693086.

Subtracting from 6161839 its sum of digits (34), we obtain a triangular number (6161805 = T₃₅₁₀).

The spelling of 6161839 in words is "six million, one hundred sixty-one thousand, eight hundred thirty-nine".