16945065 has 32 divisors (see below), whose sum is σ = 31104000. Its totient is φ = 8743680.

The previous prime is 16945063. The next prime is 16945067. The reversal of 16945065 is 56054961.

It is an interprime number because it is at equal distance from previous prime (16945063) and next prime (16945067).

It is not a de Polignac number, because 16945065 - 2¹ = 16945063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16945063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2161 + ... + 6209.

It is an arithmetic number, because the mean of its divisors is an integer number (972000).

Almost surely, 2^16945065 is an apocalyptic number.

16945065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16945065 is a deficient number, since it is larger than the sum of its proper divisors (14158935).

16945065 is a wasteful number, since it uses less digits than its factorization.

16945065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094 (or 4088 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 16945065 is about 4116.4383877328. The cubic root of 16945065 is about 256.8508928306.

The spelling of 16945065 in words is "sixteen million, nine hundred forty-five thousand, sixty-five".