158871603 has 16 divisors (see below), whose sum is σ = 241134336. Its totient is φ = 92099040.

The previous prime is 158871593. The next prime is 158871619. The reversal of 158871603 is 306178851.

It is not a de Polignac number, because 158871603 - 2⁵ = 158871571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158871653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103900 + ... + 105417.

It is an arithmetic number, because the mean of its divisors is an integer number (15070896).

Almost surely, 2^158871603 is an apocalyptic number.

158871603 is a deficient number, since it is larger than the sum of its proper divisors (82262733).

158871603 is a wasteful number, since it uses less digits than its factorization.

158871603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209354.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 158871603 is about 12604.4279124441. The cubic root of 158871603 is about 541.6042860339.

The spelling of 158871603 in words is "one hundred fifty-eight million, eight hundred seventy-one thousand, six hundred three".