16205145 has 16 divisors (see below), whose sum is σ = 28285632. Its totient is φ = 7856960.

The previous prime is 16205141. The next prime is 16205159. The reversal of 16205145 is 54150261.

It is not a de Polignac number, because 16205145 - 2² = 16205141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16205141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48942 + ... + 49271.

It is an arithmetic number, because the mean of its divisors is an integer number (1767852).

Almost surely, 2^16205145 is an apocalyptic number.

16205145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16205145 is a deficient number, since it is larger than the sum of its proper divisors (12080487).

16205145 is a wasteful number, since it uses less digits than its factorization.

16205145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98232.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 16205145 is about 4025.5614515245. The cubic root of 16205145 is about 253.0565835519.

Subtracting 16205145 from its reverse (54150261), we obtain a triangular number (37945116 = T₈₇₁₁).

The spelling of 16205145 in words is "sixteen million, two hundred five thousand, one hundred forty-five".