201340045 has 24 divisors (see below), whose sum is σ = 254663136. Its totient is φ = 152795808.

The previous prime is 201340039. The next prime is 201340063. The reversal of 201340045 is 540043102.

It is not a de Polignac number, because 201340045 - 2⁷ = 201339917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 430902 + ... + 431368.

It is an arithmetic number, because the mean of its divisors is an integer number (10610964).

Almost surely, 2^201340045 is an apocalyptic number.

It is an amenable number.

201340045 is a deficient number, since it is larger than the sum of its proper divisors (53323091).

201340045 is a wasteful number, since it uses less digits than its factorization.

201340045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 201340045 is about 14189.4342734304. The cubic root of 201340045 is about 586.1067465033.

Adding to 201340045 its reverse (540043102), we get a palindrome (741383147).

The spelling of 201340045 in words is "two hundred one million, three hundred forty thousand, forty-five".