201132545 has 8 divisors (see below), whose sum is σ = 249681960. Its totient is φ = 155357440.

The previous prime is 201132527. The next prime is 201132551. The reversal of 201132545 is 545231102.

It can be written as a sum of positive squares in 4 ways, for example, as 15737089 + 185395456 = 3967^2 + 13616^2 .

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

It is not a de Polignac number, because 201132545 - 2²² = 196938241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201132545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693416 + ... + 693705.

It is an arithmetic number, because the mean of its divisors is an integer number (31210245).

Almost surely, 2^201132545 is an apocalyptic number.

It is an amenable number.

201132545 is a deficient number, since it is larger than the sum of its proper divisors (48549415).

201132545 is a wasteful number, since it uses less digits than its factorization.

201132545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387155.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 201132545 is about 14182.1206101203. The cubic root of 201132545 is about 585.9053311098.

Adding to 201132545 its reverse (545231102), we get a palindrome (746363647).

The spelling of 201132545 in words is "two hundred one million, one hundred thirty-two thousand, five hundred forty-five".