16629145 has 32 divisors (see below), whose sum is σ = 23133600. Its totient is φ = 11366400.

The previous prime is 16629127. The next prime is 16629163. The reversal of 16629145 is 54192661.

16629145 = 2883² + 2884².

It is an interprime number because it is at equal distance from previous prime (16629127) and next prime (16629163).

It can be written as a sum of positive squares in 16 ways, for example, as 2968729 + 13660416 = 1723^2 + 3696^2 .

It is not a de Polignac number, because 16629145 - 2²³ = 8240537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16629145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111531 + ... + 111679.

It is an arithmetic number, because the mean of its divisors is an integer number (722925).

Almost surely, 2^16629145 is an apocalyptic number.

16629145 is the 2884-th centered square number.

It is an amenable number.

16629145 is a deficient number, since it is larger than the sum of its proper divisors (6504455).

16629145 is a wasteful number, since it uses less digits than its factorization.

16629145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285.

The product of its digits is 12960, while the sum is 34.

The square root of 16629145 is about 4077.8848684091. The cubic root of 16629145 is about 255.2446453880.

The spelling of 16629145 in words is "sixteen million, six hundred twenty-nine thousand, one hundred forty-five".