158787 has 8 divisors (see below), whose sum is σ = 235280. Its totient is φ = 105840.

The previous prime is 158777. The next prime is 158791. The reversal of 158787 is 787851.

158787 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 158787 - 2⁴ = 158771 is a prime.

It is a super-2 number, since 2×158787² = 50426622738, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 158787.

It is not an unprimeable number, because it can be changed into a prime (158747) 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, 2914 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (29410).

2¹⁵⁸⁷⁸⁷ is an apocalyptic number.

158787 is a deficient number, since it is larger than the sum of its proper divisors (76493).

158787 is an equidigital number, since it uses as much as digits as its factorization.

158787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890 (or 5884 counting only the distinct ones).

The product of its digits is 15680, while the sum is 36.

The square root of 158787 is about 398.4808652872. The cubic root of 158787 is about 54.1508129803.

The spelling of 158787 in words is "one hundred fifty-eight thousand, seven hundred eighty-seven".