158216473 has 4 divisors (see below), whose sum is σ = 159462400. Its totient is φ = 156970548.

The previous prime is 158216459. The next prime is 158216483. The reversal of 158216473 is 374612851.

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, and also an emirpimes, since its reverse is a distinct semiprime: 374612851 = 53 ⋅7068167.

It is a cyclic number.

It is not a de Polignac number, because 158216473 - 2²¹ = 156119321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158216453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622773 + ... + 623026.

It is an arithmetic number, because the mean of its divisors is an integer number (39865600).

Almost surely, 2^158216473 is an apocalyptic number.

It is an amenable number.

158216473 is a deficient number, since it is larger than the sum of its proper divisors (1245927).

158216473 is a wasteful number, since it uses less digits than its factorization.

158216473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245926.

The product of its digits is 40320, while the sum is 37.

The square root of 158216473 is about 12578.4129762065. The cubic root of 158216473 is about 540.8587992205.

The spelling of 158216473 in words is "one hundred fifty-eight million, two hundred sixteen thousand, four hundred seventy-three".