201401445 has 32 divisors (see below), whose sum is σ = 368835840. Its totient is φ = 91929600.

The previous prime is 201401429. The next prime is 201401479. The reversal of 201401445 is 544104102.

It is a happy number.

It is not a de Polignac number, because 201401445 - 2⁴ = 201401429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104995 + ... + 106895.

It is an arithmetic number, because the mean of its divisors is an integer number (11526120).

Almost surely, 2^201401445 is an apocalyptic number.

It is an amenable number.

201401445 is a deficient number, since it is larger than the sum of its proper divisors (167434395).

201401445 is a wasteful number, since it uses less digits than its factorization.

201401445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 201401445 is about 14191.5976901827. The cubic root of 201401445 is about 586.1663195119.

Adding to 201401445 its reverse (544104102), we get a palindrome (745505547).

The spelling of 201401445 in words is "two hundred one million, four hundred one thousand, four hundred forty-five".