158438522441 has 4 divisors (see below), whose sum is σ = 158440684032. Its totient is φ = 158436360852.

The previous prime is 158438522401. The next prime is 158438522477. The reversal of 158438522441 is 144225834851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158438522441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158438522401) 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, 966845 + ... + 1118778.

It is an arithmetic number, because the mean of its divisors is an integer number (39610171008).

Almost surely, 2^158438522441 is an apocalyptic number.

It is an amenable number.

158438522441 is a deficient number, since it is larger than the sum of its proper divisors (2161591).

158438522441 is an equidigital number, since it uses as much as digits as its factorization.

158438522441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161590.

The product of its digits is 1228800, while the sum is 47.

The spelling of 158438522441 in words is "one hundred fifty-eight billion, four hundred thirty-eight million, five hundred twenty-two thousand, four hundred forty-one".