16747145 has 4 divisors (see below), whose sum is σ = 20096580. Its totient is φ = 13397712.

The previous prime is 16747127. The next prime is 16747163. The reversal of 16747145 is 54174761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54174761 = 149 ⋅363589.

It is an interprime number because it is at equal distance from previous prime (16747127) and next prime (16747163).

It can be written as a sum of positive squares in 2 ways, for example, as 13227769 + 3519376 = 3637^2 + 1876^2 .

It is a cyclic number.

It is not a de Polignac number, because 16747145 - 2⁸ = 16746889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1674710 + ... + 1674719.

It is an arithmetic number, because the mean of its divisors is an integer number (5024145).

Almost surely, 2^16747145 is an apocalyptic number.

It is an amenable number.

16747145 is a deficient number, since it is larger than the sum of its proper divisors (3349435).

16747145 is an equidigital number, since it uses as much as digits as its factorization.

16747145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349434.

The product of its digits is 23520, while the sum is 35.

The square root of 16747145 is about 4092.3275773085. The cubic root of 16747145 is about 255.8469595131.

The spelling of 16747145 in words is "sixteen million, seven hundred forty-seven thousand, one hundred forty-five".