158257105 has 8 divisors (see below), whose sum is σ = 190893672. Its totient is φ = 125948928.

The previous prime is 158257093. The next prime is 158257109. The reversal of 158257105 is 501752851.

It can be written as a sum of positive squares in 4 ways, for example, as 76176 + 158180929 = 276^2 + 12577^2 .

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 158257105 - 2⁷ = 158256977 is a prime.

It is a super-2 number, since 2×158257105² = 50090622565962050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158257109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81034 + ... + 82963.

It is an arithmetic number, because the mean of its divisors is an integer number (23861709).

Almost surely, 2^158257105 is an apocalyptic number.

It is an amenable number.

158257105 is a deficient number, since it is larger than the sum of its proper divisors (32636567).

158257105 is a wasteful number, since it uses less digits than its factorization.

158257105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164195.

The product of its (nonzero) digits is 14000, while the sum is 34.

The square root of 158257105 is about 12580.0280206365. The cubic root of 158257105 is about 540.9050950609.

The spelling of 158257105 in words is "one hundred fifty-eight million, two hundred fifty-seven thousand, one hundred five".