115115021542 has 8 divisors (see below), whose sum is σ = 172679269032. Its totient is φ = 57555265200.

The previous prime is 115115021453. The next prime is 115115021543. The reversal of 115115021542 is 245120511511.

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

It is a self number, because there is not a number n which added to its sum of digits gives 115115021542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115115021543) 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, 1057959 + ... + 1161682.

It is an arithmetic number, because the mean of its divisors is an integer number (21584908629).

Almost surely, 2^115115021542 is an apocalyptic number.

115115021542 is a deficient number, since it is larger than the sum of its proper divisors (57564247490).

115115021542 is a wasteful number, since it uses less digits than its factorization.

115115021542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245574.

The product of its (nonzero) digits is 2000, while the sum is 28.

The spelling of 115115021542 in words is "one hundred fifteen billion, one hundred fifteen million, twenty-one thousand, five hundred forty-two".