40115201 has 4 divisors (see below), whose sum is σ = 45845952. Its totient is φ = 34384452.

The previous prime is 40115183. The next prime is 40115203. The reversal of 40115201 is 10251104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40115201 - 2¹⁸ = 39853057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40115203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2865365 + ... + 2865378.

It is an arithmetic number, because the mean of its divisors is an integer number (11461488).

Almost surely, 2^40115201 is an apocalyptic number.

It is an amenable number.

40115201 is a deficient number, since it is larger than the sum of its proper divisors (5730751).

40115201 is an equidigital number, since it uses as much as digits as its factorization.

40115201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730750.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 40115201 is about 6333.6562110680. The cubic root of 40115201 is about 342.3231928822.

Adding to 40115201 its reverse (10251104), we get a palindrome (50366305).

The spelling of 40115201 in words is "forty million, one hundred fifteen thousand, two hundred one".