1317874212 has 30 divisors (see below), whose sum is σ = 3445184358. Its totient is φ = 439291296.

The previous prime is 1317874211. The next prime is 1317874223. The reversal of 1317874212 is 2124787131.

It can be written as a sum of positive squares in only one way, i.e., 721244736 + 596629476 = 26856^2 + 24426^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1317874211) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 2033433 + ... + 2034080.

Almost surely, 2^1317874212 is an apocalyptic number.

1317874212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1317874212 is an abundant number, since it is smaller than the sum of its proper divisors (2127310146).

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

1317874212 is a wasteful number, since it uses less digits than its factorization.

1317874212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067529 (or 4067518 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 1317874212 is about 36302.5372666980. The cubic root of 1317874212 is about 1096.3721286394.

The spelling of 1317874212 in words is "one billion, three hundred seventeen million, eight hundred seventy-four thousand, two hundred twelve".