169880013 has 6 divisors (see below), whose sum is σ = 245382254. Its totient is φ = 113253336.

The previous prime is 169880003. The next prime is 169880023. The reversal of 169880013 is 310088961.

It is an interprime number because it is at equal distance from previous prime (169880003) and next prime (169880023).

It can be written as a sum of positive squares in only one way, i.e., 108618084 + 61261929 = 10422^2 + 7827^2 .

It is not a de Polignac number, because 169880013 - 2⁵ = 169879981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169880013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169880003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9437770 + ... + 9437787.

Almost surely, 2^169880013 is an apocalyptic number.

It is an amenable number.

169880013 is a deficient number, since it is larger than the sum of its proper divisors (75502241).

169880013 is a wasteful number, since it uses less digits than its factorization.

169880013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18875563 (or 18875560 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 169880013 is about 13033.8027068082. The cubic root of 169880013 is about 553.8354642212.

The spelling of 169880013 in words is "one hundred sixty-nine million, eight hundred eighty thousand, thirteen".