115501421524541 has 4 divisors (see below), whose sum is σ = 124386146257212. Its totient is φ = 106616696791872.

The previous prime is 115501421524493. The next prime is 115501421524547. The reversal of 115501421524541 is 145425124105511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24074281968025 + 91427139556516 = 4906555^2 + 9561754^2 .

It is a cyclic number.

It is not a de Polignac number, because 115501421524541 - 2⁶ = 115501421524477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115501421524547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4442362366316 + ... + 4442362366341.

It is an arithmetic number, because the mean of its divisors is an integer number (31096536564303).

Almost surely, 2^{115501421524541} is an apocalyptic number.

It is an amenable number.

115501421524541 is a deficient number, since it is larger than the sum of its proper divisors (8884724732671).

115501421524541 is an equidigital number, since it uses as much as digits as its factorization.

115501421524541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8884724732670.

The product of its (nonzero) digits is 160000, while the sum is 41.

The spelling of 115501421524541 in words is "one hundred fifteen trillion, five hundred one billion, four hundred twenty-one million, five hundred twenty-four thousand, five hundred forty-one".