40201145 has 4 divisors (see below), whose sum is σ = 48241380. Its totient is φ = 32160912.

The previous prime is 40201103. The next prime is 40201157. The reversal of 40201145 is 54110204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30063289 + 10137856 = 5483^2 + 3184^2 .

It is a cyclic number.

It is not a de Polignac number, because 40201145 - 2¹⁶ = 40135609 is a prime.

It is a super-3 number, since 3×40201145³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4020110 + ... + 4020119.

It is an arithmetic number, because the mean of its divisors is an integer number (12060345).

Almost surely, 2^40201145 is an apocalyptic number.

It is an amenable number.

40201145 is a deficient number, since it is larger than the sum of its proper divisors (8040235).

40201145 is an equidigital number, since it uses as much as digits as its factorization.

40201145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040234.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 40201145 is about 6340.4372877586. The cubic root of 40201145 is about 342.5674863020.

Adding to 40201145 its reverse (54110204), we get a palindrome (94311349).

The spelling of 40201145 in words is "forty million, two hundred one thousand, one hundred forty-five".