1040240215135 has 8 divisors (see below), whose sum is σ = 1361769008976. Its totient is φ = 756538338240.

The previous prime is 1040240215123. The next prime is 1040240215151. The reversal of 1040240215135 is 5315120420401.

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

It is not a de Polignac number, because 1040240215135 - 2⁹ = 1040240214623 is a prime.

It is a super-2 number, since 2×1040240215135² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9456729174 + ... + 9456729283.

It is an arithmetic number, because the mean of its divisors is an integer number (170221126122).

Almost surely, 2^{1040240215135} is an apocalyptic number.

1040240215135 is a deficient number, since it is larger than the sum of its proper divisors (321528793841).

1040240215135 is a wasteful number, since it uses less digits than its factorization.

1040240215135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18913458473.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 1040240215135 its reverse (5315120420401), we get a palindrome (6355360635536).

The spelling of 1040240215135 in words is "one trillion, forty billion, two hundred forty million, two hundred fifteen thousand, one hundred thirty-five".