40113001 has 4 divisors (see below), whose sum is σ = 40136004. Its totient is φ = 40090000.

The previous prime is 40112983. The next prime is 40113019. The reversal of 40113001 is 10031104.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (40112983) and next prime (40113019).

It can be written as a sum of positive squares in 2 ways, for example, as 6007401 + 34105600 = 2451^2 + 5840^2 .

It is a cyclic number.

It is not a de Polignac number, because 40113001 - 2⁷ = 40112873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40116001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8650 + ... + 12451.

It is an arithmetic number, because the mean of its divisors is an integer number (10034001).

Almost surely, 2^40113001 is an apocalyptic number.

It is an amenable number.

40113001 is a deficient number, since it is larger than the sum of its proper divisors (23003).

40113001 is a wasteful number, since it uses less digits than its factorization.

40113001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23002.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 40113001 is about 6333.4825333303. The cubic root of 40113001 is about 342.3169348655.

Adding to 40113001 its reverse (10031104), we get a palindrome (50144105).

The spelling of 40113001 in words is "forty million, one hundred thirteen thousand, one".