158738473 has 8 divisors (see below), whose sum is σ = 163737288. Its totient is φ = 153777024.

The previous prime is 158738467. The next prime is 158738501. The reversal of 158738473 is 374837851.

It can be written as a sum of positive squares in 4 ways, for example, as 17413929 + 141324544 = 4173^2 + 11888^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158738473 - 2⁵ = 158738441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158738773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586 + ... + 17827.

It is an arithmetic number, because the mean of its divisors is an integer number (20467161).

Almost surely, 2^158738473 is an apocalyptic number.

It is an amenable number.

158738473 is a deficient number, since it is larger than the sum of its proper divisors (4998815).

158738473 is a wasteful number, since it uses less digits than its factorization.

158738473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18683.

The product of its digits is 564480, while the sum is 46.

The square root of 158738473 is about 12599.1457250085. The cubic root of 158738473 is about 541.4529606303.

The spelling of 158738473 in words is "one hundred fifty-eight million, seven hundred thirty-eight thousand, four hundred seventy-three".