16226149 has 4 divisors (see below), whose sum is σ = 16299136. Its totient is φ = 16153164.

The previous prime is 16226141. The next prime is 16226153. The reversal of 16226149 is 94162261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94162261 = 1031 ⋅91331.

It is a cyclic number.

It is not a de Polignac number, because 16226149 - 2³ = 16226141 is a prime.

It is a super-2 number, since 2×16226149² = 526575822740402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16226149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16226141) 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, 36159 + ... + 36604.

It is an arithmetic number, because the mean of its divisors is an integer number (4074784).

Almost surely, 2^16226149 is an apocalyptic number.

It is an amenable number.

16226149 is a deficient number, since it is larger than the sum of its proper divisors (72987).

16226149 is an equidigital number, since it uses as much as digits as its factorization.

16226149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72986.

The product of its digits is 5184, while the sum is 31.

The square root of 16226149 is about 4028.1694353639. The cubic root of 16226149 is about 253.1658678921.

The spelling of 16226149 in words is "sixteen million, two hundred twenty-six thousand, one hundred forty-nine".