40115001 has 8 divisors (see below), whose sum is σ = 54730720. Its totient is φ = 26121312.

The previous prime is 40114981. The next prime is 40115039. The reversal of 40115001 is 10051104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40115001 - 2⁶ = 40114937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40115041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155356 + ... + 155613.

It is an arithmetic number, because the mean of its divisors is an integer number (6841340).

Almost surely, 2^40115001 is an apocalyptic number.

It is an amenable number.

40115001 is a deficient number, since it is larger than the sum of its proper divisors (14615719).

40115001 is a wasteful number, since it uses less digits than its factorization.

40115001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311015.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 40115001 is about 6333.6404223795. The cubic root of 40115001 is about 342.3226239810.

Adding to 40115001 its reverse (10051104), we get a palindrome (50166105).

The spelling of 40115001 in words is "forty million, one hundred fifteen thousand, one".