115515542142134 has 4 divisors (see below), whose sum is σ = 173273313213204. Its totient is φ = 57757771071066.

The previous prime is 115515542142097. The next prime is 115515542142137. The reversal of 115515542142134 is 431241245515511.

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

It is a super-2 number, since 2×115515542142134² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115515542142137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28878885535532 + ... + 28878885535535.

It is an arithmetic number, because the mean of its divisors is an integer number (43318328303301).

Almost surely, 2^{115515542142134} is an apocalyptic number.

115515542142134 is a deficient number, since it is larger than the sum of its proper divisors (57757771071070).

115515542142134 is an equidigital number, since it uses as much as digits as its factorization.

115515542142134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57757771071069.

The product of its digits is 480000, while the sum is 44.

Adding to 115515542142134 its reverse (431241245515511), we get a palindrome (546756787657645).

The spelling of 115515542142134 in words is "one hundred fifteen trillion, five hundred fifteen billion, five hundred forty-two million, one hundred forty-two thousand, one hundred thirty-four".