169399132 has 24 divisors (see below), whose sum is σ = 339390464. Its totient is φ = 72472752.

The previous prime is 169399127. The next prime is 169399157. The reversal of 169399132 is 231993961.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12013 + ... + 21979.

Almost surely, 2^169399132 is an apocalyptic number.

It is an amenable number.

169399132 is an abundant number, since it is smaller than the sum of its proper divisors (169991332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169399132 is a wasteful number, since it uses less digits than its factorization.

169399132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10585 (or 10583 counting only the distinct ones).

The product of its digits is 78732, while the sum is 43.

The square root of 169399132 is about 13015.3421775995. The cubic root of 169399132 is about 553.3123878783.

The spelling of 169399132 in words is "one hundred sixty-nine million, three hundred ninety-nine thousand, one hundred thirty-two".