169093090 has 16 divisors (see below), whose sum is σ = 305948088. Its totient is φ = 67286016.

The previous prime is 169093081. The next prime is 169093091. The reversal of 169093090 is 90390961.

It can be written as a sum of positive squares in 4 ways, for example, as 149352841 + 19740249 = 12221^2 + 4443^2 .

It is not an unprimeable number, because it can be changed into a prime (169093091) 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, 41877 + ... + 45736.

Almost surely, 2^169093090 is an apocalyptic number.

169093090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

169093090 is a deficient number, since it is larger than the sum of its proper divisors (136854998).

169093090 is a wasteful number, since it uses less digits than its factorization.

169093090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87813.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 169093090 is about 13003.5798917067. The cubic root of 169093090 is about 552.9789762747.

The spelling of 169093090 in words is "one hundred sixty-nine million, ninety-three thousand, ninety".