158169983 has 4 divisors (see below), whose sum is σ = 158277000. Its totient is φ = 158062968.

The previous prime is 158169971. The next prime is 158170063. The reversal of 158169983 is 389961851.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 158169983 - 2⁸ = 158169727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158169943) 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, 51260 + ... + 54257.

It is an arithmetic number, because the mean of its divisors is an integer number (39569250).

Almost surely, 2^158169983 is an apocalyptic number.

158169983 is a deficient number, since it is larger than the sum of its proper divisors (107017).

158169983 is a wasteful number, since it uses less digits than its factorization.

158169983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107016.

The product of its digits is 466560, while the sum is 50.

The square root of 158169983 is about 12576.5648330536. The cubic root of 158169983 is about 540.8058190887.

The spelling of 158169983 in words is "one hundred fifty-eight million, one hundred sixty-nine thousand, nine hundred eighty-three".