40115122513 has 8 divisors (see below), whose sum is σ = 42756128640. Its totient is φ = 37505371200.

The previous prime is 40115122477. The next prime is 40115122517. The reversal of 40115122513 is 31522151104.

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

It is a cyclic number.

It is not a de Polignac number, because 40115122513 - 2²⁵ = 40081568081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40115122517) 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, 7811053 + ... + 7816186.

It is an arithmetic number, because the mean of its divisors is an integer number (5344516080).

Almost surely, 2^40115122513 is an apocalyptic number.

It is an amenable number.

40115122513 is a deficient number, since it is larger than the sum of its proper divisors (2641006127).

40115122513 is a wasteful number, since it uses less digits than its factorization.

40115122513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15627407.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 40115122513 its reverse (31522151104), we get a palindrome (71637273617).

The spelling of 40115122513 in words is "forty billion, one hundred fifteen million, one hundred twenty-two thousand, five hundred thirteen".