16745745 has 16 divisors (see below), whose sum is σ = 28203840. Its totient is φ = 8460864.

The previous prime is 16745741. The next prime is 16745761. The reversal of 16745745 is 54754761.

It is not a de Polignac number, because 16745745 - 2² = 16745741 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16745741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29094 + ... + 29663.

It is an arithmetic number, because the mean of its divisors is an integer number (1762740).

Almost surely, 2^16745745 is an apocalyptic number.

16745745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16745745 is a deficient number, since it is larger than the sum of its proper divisors (11458095).

16745745 is a wasteful number, since it uses less digits than its factorization.

16745745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58784.

The product of its digits is 117600, while the sum is 39.

The square root of 16745745 is about 4092.1565219331. The cubic root of 16745745 is about 255.8398300248.

The spelling of 16745745 in words is "sixteen million, seven hundred forty-five thousand, seven hundred forty-five".