158251870541 has 4 divisors (see below), whose sum is σ = 158252966652. Its totient is φ = 158250774432.

The previous prime is 158251870529. The next prime is 158251870549. The reversal of 158251870541 is 145078152851.

158251870541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 145078152851 = 2777 ⋅52242763.

It can be written as a sum of positive squares in 2 ways, for example, as 137796864100 + 20455006441 = 371210^2 + 143021^2 .

It is a cyclic number.

It is not a de Polignac number, because 158251870541 - 2⁶ = 158251870477 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 (158251870549) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 291440 + ... + 633593.

It is an arithmetic number, because the mean of its divisors is an integer number (39563241663).

Almost surely, 2^158251870541 is an apocalyptic number.

It is an amenable number.

158251870541 is a deficient number, since it is larger than the sum of its proper divisors (1096111).

158251870541 is an equidigital number, since it uses as much as digits as its factorization.

158251870541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096110.

The product of its (nonzero) digits is 448000, while the sum is 47.

The spelling of 158251870541 in words is "one hundred fifty-eight billion, two hundred fifty-one million, eight hundred seventy thousand, five hundred forty-one".