158728743 has 24 divisors (see below), whose sum is σ = 232689600. Its totient is φ = 104255424.

The previous prime is 158728721. The next prime is 158728747. The reversal of 158728743 is 347827851.

158728743 is a `hidden beast` number, since 1 + 587 + 28 + 7 + 43 = 666.

It is not a de Polignac number, because 158728743 - 2²² = 154534439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158728747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234121 + ... + 234797.

It is an arithmetic number, because the mean of its divisors is an integer number (9695400).

Almost surely, 2^158728743 is an apocalyptic number.

158728743 is a deficient number, since it is larger than the sum of its proper divisors (73960857).

158728743 is a wasteful number, since it uses less digits than its factorization.

158728743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1028 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 158728743 is about 12598.7595818001. The cubic root of 158728743 is about 541.4418974754.

The spelling of 158728743 in words is "one hundred fifty-eight million, seven hundred twenty-eight thousand, seven hundred forty-three".