6161065131 has 16 divisors (see below), whose sum is σ = 9231296256. Its totient is φ = 3626579616.

The previous prime is 6161065129. The next prime is 6161065133. The reversal of 6161065131 is 1315601616.

It is an interprime number because it is at equal distance from previous prime (6161065129) and next prime (6161065133).

It is not a de Polignac number, because 6161065131 - 2¹ = 6161065129 is a prime.

It is a super-2 number, since 2×6161065131² = 75917447096848094322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6161065133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3433365 + ... + 3435158.

It is an arithmetic number, because the mean of its divisors is an integer number (576956016).

Almost surely, 2^6161065131 is an apocalyptic number.

6161065131 is a deficient number, since it is larger than the sum of its proper divisors (3070231125).

6161065131 is a wasteful number, since it uses less digits than its factorization.

6161065131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6868562.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 6161065131 is about 78492.4527008807. The cubic root of 6161065131 is about 1833.2369408898.

Adding to 6161065131 its reverse (1315601616), we get a palindrome (7476666747).

The spelling of 6161065131 in words is "six billion, one hundred sixty-one million, sixty-five thousand, one hundred thirty-one".