16775138 has 16 divisors (see below), whose sum is σ = 26598240. Its totient is φ = 7912800.

The previous prime is 16775131. The next prime is 16775147. The reversal of 16775138 is 83157761.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (16775131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9893 + ... + 11463.

It is an arithmetic number, because the mean of its divisors is an integer number (1662390).

Almost surely, 2^16775138 is an apocalyptic number.

16775138 is a deficient number, since it is larger than the sum of its proper divisors (9823102).

16775138 is a wasteful number, since it uses less digits than its factorization.

16775138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873.

The product of its digits is 35280, while the sum is 38.

The square root of 16775138 is about 4095.7463300356. The cubic root of 16775138 is about 255.9894303090.

The spelling of 16775138 in words is "sixteen million, seven hundred seventy-five thousand, one hundred thirty-eight".