158787873 has 12 divisors (see below), whose sum is σ = 229585408. Its totient is φ = 105754680.

The previous prime is 158787833. The next prime is 158787931. The reversal of 158787873 is 378787851.

158787873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 158787873 - 2⁶ = 158787809 is a prime.

It is a super-2 number, since 2×158787873² = 50427177223728258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158787823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1668 + ... + 17898.

Almost surely, 2^158787873 is an apocalyptic number.

It is an amenable number.

158787873 is a deficient number, since it is larger than the sum of its proper divisors (70797535).

158787873 is a wasteful number, since it uses less digits than its factorization.

158787873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17324 (or 17321 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 54.

The square root of 158787873 is about 12601.1060228855. The cubic root of 158787873 is about 541.5091221929.

The spelling of 158787873 in words is "one hundred fifty-eight million, seven hundred eighty-seven thousand, eight hundred seventy-three".