161134131 has 8 divisors (see below), whose sum is σ = 214923520. Its totient is φ = 107383752.

The previous prime is 161134097. The next prime is 161134153. The reversal of 161134131 is 131431161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161134131 - 2¹⁰ = 161133107 is a prime.

It is a super-2 number, since 2×161134131² = 51928416346250322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161134098 and 161134107.

It is not an unprimeable number, because it can be changed into a prime (161133131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1866 + ... + 18048.

It is an arithmetic number, because the mean of its divisors is an integer number (26865440).

Almost surely, 2^161134131 is an apocalyptic number.

161134131 is a deficient number, since it is larger than the sum of its proper divisors (53789389).

161134131 is a wasteful number, since it uses less digits than its factorization.

161134131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19505.

The product of its digits is 216, while the sum is 21.

The square root of 161134131 is about 12693.8619418993. The cubic root of 161134131 is about 544.1632149301.

Adding to 161134131 its reverse (131431161), we get a palindrome (292565292).

The spelling of 161134131 in words is "one hundred sixty-one million, one hundred thirty-four thousand, one hundred thirty-one".