6161539 has 4 divisors (see below), whose sum is σ = 6429456. Its totient is φ = 5893624.

The previous prime is 6161527. The next prime is 6161579. The reversal of 6161539 is 9351616.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6161539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6161539.

It is not an unprimeable number, because it can be changed into a prime (6161509) 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, 133924 + ... + 133969.

It is an arithmetic number, because the mean of its divisors is an integer number (1607364).

Almost surely, 2^6161539 is an apocalyptic number.

6161539 is a deficient number, since it is larger than the sum of its proper divisors (267917).

6161539 is a wasteful number, since it uses less digits than its factorization.

6161539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267916.

The product of its digits is 4860, while the sum is 31.

The square root of 6161539 is about 2482.2447502211. The cubic root of 6161539 is about 183.3283939900.

The spelling of 6161539 in words is "six million, one hundred sixty-one thousand, five hundred thirty-nine".