16742122 has 4 divisors (see below), whose sum is σ = 25113186. Its totient is φ = 8371060.

The previous prime is 16742119. The next prime is 16742123. The reversal of 16742122 is 22124761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16719921 + 22201 = 4089^2 + 149^2 .

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (16742123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4185529 + ... + 4185532.

Almost surely, 2^16742122 is an apocalyptic number.

16742122 is a deficient number, since it is larger than the sum of its proper divisors (8371064).

16742122 is an equidigital number, since it uses as much as digits as its factorization.

16742122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8371063.

The product of its digits is 1344, while the sum is 25.

The square root of 16742122 is about 4091.7138218600. The cubic root of 16742122 is about 255.8213780825.

Adding to 16742122 its reverse (22124761), we get a palindrome (38866883).

The spelling of 16742122 in words is "sixteen million, seven hundred forty-two thousand, one hundred twenty-two".