158497727 has 4 divisors (see below), whose sum is σ = 158559360. Its totient is φ = 158436096.

The previous prime is 158497723. The next prime is 158497831. The reversal of 158497727 is 727794851.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 158497727 - 2² = 158497723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158497723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26783 + ... + 32160.

It is an arithmetic number, because the mean of its divisors is an integer number (39639840).

Almost surely, 2^158497727 is an apocalyptic number.

158497727 is a deficient number, since it is larger than the sum of its proper divisors (61633).

158497727 is an equidigital number, since it uses as much as digits as its factorization.

158497727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61632.

The product of its digits is 987840, while the sum is 50.

The square root of 158497727 is about 12589.5880393284. The cubic root of 158497727 is about 541.1790959394.

The spelling of 158497727 in words is "one hundred fifty-eight million, four hundred ninety-seven thousand, seven hundred twenty-seven".