201415445 has 32 divisors (see below), whose sum is σ = 307777536. Its totient is φ = 122875200.

The previous prime is 201415441. The next prime is 201415451. The reversal of 201415445 is 544514102.

It is not a de Polignac number, because 201415445 - 2² = 201415441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201415441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12530 + ... + 23660.

It is an arithmetic number, because the mean of its divisors is an integer number (9618048).

Almost surely, 2^201415445 is an apocalyptic number.

It is an amenable number.

201415445 is a deficient number, since it is larger than the sum of its proper divisors (106362091).

201415445 is a wasteful number, since it uses less digits than its factorization.

201415445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11201.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 201415445 is about 14192.0909312194. The cubic root of 201415445 is about 586.1799012389.

Adding to 201415445 its reverse (544514102), we get a palindrome (745929547).

The spelling of 201415445 in words is "two hundred one million, four hundred fifteen thousand, four hundred forty-five".