201534545 has 8 divisors (see below), whose sum is σ = 245806440. Its totient is φ = 158584320.

The previous prime is 201534521. The next prime is 201534547. The reversal of 201534545 is 545435102.

It can be written as a sum of positive squares in 4 ways, for example, as 18284176 + 183250369 = 4276^2 + 13537^2 .

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

It is not a de Polignac number, because 201534545 - 2⁶ = 201534481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201534547) 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, 330080 + ... + 330689.

It is an arithmetic number, because the mean of its divisors is an integer number (30725805).

Almost surely, 2^201534545 is an apocalyptic number.

It is an amenable number.

201534545 is a deficient number, since it is larger than the sum of its proper divisors (44271895).

201534545 is an equidigital number, since it uses as much as digits as its factorization.

201534545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660835.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 201534545 is about 14196.2863101587. The cubic root of 201534545 is about 586.2954174878.

Adding to 201534545 its reverse (545435102), we get a palindrome (746969647).

The spelling of 201534545 in words is "two hundred one million, five hundred thirty-four thousand, five hundred forty-five".