16180131 has 16 divisors (see below), whose sum is σ = 23748480. Its totient is φ = 9717120.

The previous prime is 16180127. The next prime is 16180139. The reversal of 16180131 is 13108161.

It is not a de Polignac number, because 16180131 - 2² = 16180127 is a prime.

It is a super-2 number, since 2×16180131² = 523593278354322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16180098 and 16180107.

It is not an unprimeable number, because it can be changed into a prime (16180139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1560 + ... + 5898.

It is an arithmetic number, because the mean of its divisors is an integer number (1484280).

Almost surely, 2^16180131 is an apocalyptic number.

16180131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16180131 is a deficient number, since it is larger than the sum of its proper divisors (7568349).

16180131 is a wasteful number, since it uses less digits than its factorization.

16180131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 16180131 is about 4022.4533558514. The cubic root of 16180131 is about 252.9263118159.

Adding to 16180131 its reverse (13108161), we get a palindrome (29288292).

The spelling of 16180131 in words is "sixteen million, one hundred eighty thousand, one hundred thirty-one".