158558461 has 2 divisors, whose sum is σ = 158558462. Its totient is φ = 158558460.

The previous prime is 158558447. The next prime is 158558467. The reversal of 158558461 is 164855851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118679236 + 39879225 = 10894^2 + 6315^2 .

It is a cyclic number.

It is not a de Polignac number, because 158558461 - 2⁷ = 158558333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158558467) 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 as a sum of consecutive naturals, namely, 79279230 + 79279231.

It is an arithmetic number, because the mean of its divisors is an integer number (79279231).

Almost surely, 2^158558461 is an apocalyptic number.

It is an amenable number.

158558461 is a deficient number, since it is larger than the sum of its proper divisors (1).

158558461 is an equidigital number, since it uses as much as digits as its factorization.

158558461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192000, while the sum is 43.

The square root of 158558461 is about 12591.9998808767. Note that the first 3 decimals coincide. The cubic root of 158558461 is about 541.2482110714.

The spelling of 158558461 in words is "one hundred fifty-eight million, five hundred fifty-eight thousand, four hundred sixty-one".