158755230481 has 3 divisors (see below), whose sum is σ = 158755628923. Its totient is φ = 158754832040.

The previous prime is 158755230463. The next prime is 158755230533. The reversal of 158755230481 is 184032557851.

The square root of 158755230481 is 398441.

It is a perfect power (a square), and thus also a powerful number.

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.

It can be written as a sum of positive squares in only one way, i.e., 5185296081 + 153569934400 = 72009^2 + 391880^2 .

It is not a de Polignac number, because 158755230481 - 2²⁵ = 158721676049 is a prime.

It is a super-2 number, since 2×158755230481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158755230461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 199221 + ... + 597661.

Almost surely, 2^158755230481 is an apocalyptic number.

158755230481 is the 398441-st square number.

158755230481 is the 199221-st centered octagonal number.

It is an amenable number.

158755230481 is a deficient number, since it is larger than the sum of its proper divisors (398442).

158755230481 is an frugal number, since it uses more digits than its factorization.

158755230481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796882 (or 398441 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 49.

Multiplying 158755230481 by its sum of digits (49), we get a square (7779006293569 = 2789087²).

The spelling of 158755230481 in words is "one hundred fifty-eight billion, seven hundred fifty-five million, two hundred thirty thousand, four hundred eighty-one".