201210545 has 16 divisors (see below), whose sum is σ = 249047040. Its totient is φ = 155965824.

The previous prime is 201210533. The next prime is 201210571. The reversal of 201210545 is 545012102.

It is a cyclic number.

It is not a de Polignac number, because 201210545 - 2¹² = 201206449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23621 + ... + 30989.

It is an arithmetic number, because the mean of its divisors is an integer number (15565440).

Almost surely, 2^201210545 is an apocalyptic number.

It is an amenable number.

201210545 is a deficient number, since it is larger than the sum of its proper divisors (47836495).

201210545 is a wasteful number, since it uses less digits than its factorization.

201210545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7544.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 201210545 is about 14184.8702849198. The cubic root of 201210545 is about 585.9810601263.

Adding to 201210545 its reverse (545012102), we get a palindrome (746222647).

The spelling of 201210545 in words is "two hundred one million, two hundred ten thousand, five hundred forty-five".