115405136140407 has 4 divisors (see below), whose sum is σ = 153873514853880. Its totient is φ = 76936757426936.

The previous prime is 115405136140367. The next prime is 115405136140417. The reversal of 115405136140407 is 704041631504511.

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 115405136140407 - 2¹⁰ = 115405136139383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115405136140417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19234189356732 + ... + 19234189356737.

It is an arithmetic number, because the mean of its divisors is an integer number (38468378713470).

Almost surely, 2^{115405136140407} is an apocalyptic number.

115405136140407 is a deficient number, since it is larger than the sum of its proper divisors (38468378713473).

115405136140407 is an equidigital number, since it uses as much as digits as its factorization.

115405136140407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38468378713472.

The product of its (nonzero) digits is 201600, while the sum is 42.

Adding to 115405136140407 its reverse (704041631504511), we get a palindrome (819446767644918).

The spelling of 115405136140407 in words is "one hundred fifteen trillion, four hundred five billion, one hundred thirty-six million, one hundred forty thousand, four hundred seven".