16108031 has 4 divisors (see below), whose sum is σ = 16198200. Its totient is φ = 16017864.

The previous prime is 16108013. The next prime is 16108063. The reversal of 16108031 is 13080161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13080161 = 1871 ⋅6991.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16108031 is a prime.

It is a super-2 number, since 2×16108031² = 518937325393922, 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 = 16107994 and 16108012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16108091) 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, 44816 + ... + 45173.

It is an arithmetic number, because the mean of its divisors is an integer number (4049550).

Almost surely, 2^16108031 is an apocalyptic number.

16108031 is a deficient number, since it is larger than the sum of its proper divisors (90169).

16108031 is an equidigital number, since it uses as much as digits as its factorization.

16108031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90168.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 16108031 is about 4013.4811572997. The cubic root of 16108031 is about 252.5500655552.

Adding to 16108031 its reverse (13080161), we get a palindrome (29188192).

The spelling of 16108031 in words is "sixteen million, one hundred eight thousand, thirty-one".