1317829090 has 32 divisors (see below), whose sum is σ = 2390301936. Its totient is φ = 523100160.

The previous prime is 1317829067. The next prime is 1317829129. The reversal of 1317829090 is 909287131.

It can be written as a sum of positive squares in 8 ways, for example, as 974875729 + 342953361 = 31223^2 + 18519^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275214 + ... + 1276246.

Almost surely, 2^1317829090 is an apocalyptic number.

1317829090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1317829090 is a deficient number, since it is larger than the sum of its proper divisors (1072472846).

1317829090 is a wasteful number, since it uses less digits than its factorization.

1317829090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1317829090 is about 36301.9157896660. The cubic root of 1317829090 is about 1096.3596157943.

The spelling of 1317829090 in words is "one billion, three hundred seventeen million, eight hundred twenty-nine thousand, ninety".