201329645 has 16 divisors (see below), whose sum is σ = 263996928. Its totient is φ = 146178240.

The previous prime is 201329633. The next prime is 201329651. The reversal of 201329645 is 546923102.

It is a happy number.

It is not a de Polignac number, because 201329645 - 2⁸ = 201329389 is a prime.

It is a super-3 number, since 3×201329645³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 34532 + ... + 39938.

It is an arithmetic number, because the mean of its divisors is an integer number (16499808).

Almost surely, 2^201329645 is an apocalyptic number.

It is an amenable number.

201329645 is a deficient number, since it is larger than the sum of its proper divisors (62667283).

201329645 is a wasteful number, since it uses less digits than its factorization.

201329645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 201329645 is about 14189.0677988372. The cubic root of 201329645 is about 586.0966547617.

The spelling of 201329645 in words is "two hundred one million, three hundred twenty-nine thousand, six hundred forty-five".