201129845 has 8 divisors (see below), whose sum is σ = 275835264. Its totient is φ = 137917584.

The previous prime is 201129821. The next prime is 201129847. The reversal of 201129845 is 548921102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201129845 - 2¹⁶ = 201064309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201129847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2873249 + ... + 2873318.

It is an arithmetic number, because the mean of its divisors is an integer number (34479408).

Almost surely, 2^201129845 is an apocalyptic number.

It is an amenable number.

201129845 is a deficient number, since it is larger than the sum of its proper divisors (74705419).

201129845 is an equidigital number, since it uses as much as digits as its factorization.

201129845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5746579.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 201129845 is about 14182.0254195231. The cubic root of 201129845 is about 585.9027093702.

The spelling of 201129845 in words is "two hundred one million, one hundred twenty-nine thousand, eight hundred forty-five".