158871417 has 4 divisors (see below), whose sum is σ = 211828560. Its totient is φ = 105914276.

The previous prime is 158871413. The next prime is 158871437. The reversal of 158871417 is 714178851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 158871417 - 2² = 158871413 is a prime.

It is a super-4 number, since 4×158871417⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (158871413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26478567 + ... + 26478572.

It is an arithmetic number, because the mean of its divisors is an integer number (52957140).

Almost surely, 2^158871417 is an apocalyptic number.

It is an amenable number.

158871417 is a deficient number, since it is larger than the sum of its proper divisors (52957143).

158871417 is an equidigital number, since it uses as much as digits as its factorization.

158871417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52957142.

The product of its digits is 62720, while the sum is 42.

The square root of 158871417 is about 12604.4205340825. The cubic root of 158871417 is about 541.6040746715.

The spelling of 158871417 in words is "one hundred fifty-eight million, eight hundred seventy-one thousand, four hundred seventeen".