158555473 has 2 divisors, whose sum is σ = 158555474. Its totient is φ = 158555472.

The previous prime is 158555407. The next prime is 158555533. The reversal of 158555473 is 374555851.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158180929 + 374544 = 12577^2 + 612^2 .

It is a cyclic number.

It is not a de Polignac number, because 158555473 - 2¹⁷ = 158424401 is a prime.

It is not a weakly prime, because it can be changed into another prime (158550473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79277736 + 79277737.

It is an arithmetic number, because the mean of its divisors is an integer number (79277737).

Almost surely, 2^158555473 is an apocalyptic number.

It is an amenable number.

158555473 is a deficient number, since it is larger than the sum of its proper divisors (1).

158555473 is an equidigital number, since it uses as much as digits as its factorization.

158555473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420000, while the sum is 43.

The square root of 158555473 is about 12591.8812335568. The cubic root of 158555473 is about 541.2448111481.

The spelling of 158555473 in words is "one hundred fifty-eight million, five hundred fifty-five thousand, four hundred seventy-three".