40501201 has 4 divisors (see below), whose sum is σ = 43616692. Its totient is φ = 37385712.

The previous prime is 40501187. The next prime is 40501207. The reversal of 40501201 is 10210504.

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 2073600 + 38427601 = 1440^2 + 6199^2 .

It is not a de Polignac number, because 40501201 - 2⁹ = 40500689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 3115477 = 40501201 / (4 + 0 + 5 + 0 + 1 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40501207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557726 + ... + 1557751.

It is an arithmetic number, because the mean of its divisors is an integer number (10904173).

Almost surely, 2^40501201 is an apocalyptic number.

It is an amenable number.

40501201 is a deficient number, since it is larger than the sum of its proper divisors (3115491).

40501201 is a wasteful number, since it uses less digits than its factorization.

40501201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115490.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 40501201 is about 6364.0553894510. The cubic root of 40501201 is about 343.4176673048.

Adding to 40501201 its reverse (10210504), we get a palindrome (50711705).

The spelling of 40501201 in words is "forty million, five hundred one thousand, two hundred one".