16172126 has 4 divisors (see below), whose sum is σ = 24258192. Its totient is φ = 8086062.

The previous prime is 16172119. The next prime is 16172141. The reversal of 16172126 is 62127161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62127161 = 73 ⋅851057.

It is a junction number, because it is equal to n+sod(n) for n = 16172095 and 16172104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4043030 + ... + 4043033.

It is an arithmetic number, because the mean of its divisors is an integer number (6064548).

Almost surely, 2^16172126 is an apocalyptic number.

16172126 is a deficient number, since it is larger than the sum of its proper divisors (8086066).

16172126 is an equidigital number, since it uses as much as digits as its factorization.

16172126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8086065.

The product of its digits is 1008, while the sum is 26.

The square root of 16172126 is about 4021.4581932428. The cubic root of 16172126 is about 252.8845937953.

Adding to 16172126 its reverse (62127161), we get a palindrome (78299287).

The spelling of 16172126 in words is "sixteen million, one hundred seventy-two thousand, one hundred twenty-six".