158793483121 has 81 divisors (see below), whose sum is σ = 208537209153. Its totient is φ = 120503073600.

The previous prime is 158793483097. The next prime is 158793483133. The reversal of 158793483121 is 121384397851.

The square root of 158793483121 is 398489.

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

It can be written as a sum of positive squares in 4 ways, for example, as 20361863025 + 138431620096 = 142695^2 + 372064^2 .

It is not a de Polignac number, because 158793483121 - 2⁹ = 158793482609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158793483151) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1051612396 + ... + 1051612546.

Almost surely, 2^158793483121 is an apocalyptic number.

158793483121 is the 398489-th square number.

158793483121 is the 199245-th centered octagonal number.

It is an amenable number.

158793483121 is a deficient number, since it is larger than the sum of its proper divisors (49743726032).

158793483121 is an equidigital number, since it uses as much as digits as its factorization.

158793483121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 200 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The spelling of 158793483121 in words is "one hundred fifty-eight billion, seven hundred ninety-three million, four hundred eighty-three thousand, one hundred twenty-one".