40115135 has 4 divisors (see below), whose sum is σ = 48138168. Its totient is φ = 32092104.

The previous prime is 40115093. The next prime is 40115143. The reversal of 40115135 is 53151104.

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

It is a cyclic number.

It is not a de Polignac number, because 40115135 - 2¹⁶ = 40049599 is a prime.

It is a Duffinian number.

It is a congruent 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, 4011509 + ... + 4011518.

It is an arithmetic number, because the mean of its divisors is an integer number (12034542).

Almost surely, 2^40115135 is an apocalyptic number.

40115135 is a deficient number, since it is larger than the sum of its proper divisors (8023033).

40115135 is an equidigital number, since it uses as much as digits as its factorization.

40115135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8023032.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 40115135 is about 6333.6510008051. The cubic root of 40115135 is about 342.3230051450.

Adding to 40115135 its reverse (53151104), we get a palindrome (93266239).

The spelling of 40115135 in words is "forty million, one hundred fifteen thousand, one hundred thirty-five".