169481983 has 8 divisors (see below), whose sum is σ = 187423056. Its totient is φ = 151963200.

The previous prime is 169481951. The next prime is 169481999. The reversal of 169481983 is 389184961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 169481983 - 2⁵ = 169481951 is a prime.

It is a super-2 number, since 2×169481983² = 57448285123224578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169481183) 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, 104728 + ... + 106333.

It is an arithmetic number, because the mean of its divisors is an integer number (23427882).

Almost surely, 2^169481983 is an apocalyptic number.

169481983 is a deficient number, since it is larger than the sum of its proper divisors (17941073).

169481983 is a wasteful number, since it uses less digits than its factorization.

169481983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211145.

The product of its digits is 373248, while the sum is 49.

The square root of 169481983 is about 13018.5246091867. The cubic root of 169481983 is about 553.4025792358.

The spelling of 169481983 in words is "one hundred sixty-nine million, four hundred eighty-one thousand, nine hundred eighty-three".