158223473 has 4 divisors (see below), whose sum is σ = 163327488. Its totient is φ = 153119460.

The previous prime is 158223451. The next prime is 158223487. The reversal of 158223473 is 374322851.

158223473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 158223473 - 2¹² = 158219377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158223173) 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, 2551961 + ... + 2552022.

It is an arithmetic number, because the mean of its divisors is an integer number (40831872).

Almost surely, 2^158223473 is an apocalyptic number.

It is an amenable number.

158223473 is a deficient number, since it is larger than the sum of its proper divisors (5104015).

158223473 is an equidigital number, since it uses as much as digits as its factorization.

158223473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104014.

The product of its digits is 40320, while the sum is 35.

The square root of 158223473 is about 12578.6912276278. The cubic root of 158223473 is about 540.8667755408.

The spelling of 158223473 in words is "one hundred fifty-eight million, two hundred twenty-three thousand, four hundred seventy-three".