1213175282 has 18 divisors (see below), whose sum is σ = 2001129039. Its totient is φ = 551197020.

The previous prime is 1213175279. The next prime is 1213175317. The reversal of 1213175282 is 2825713121.

It can be written as a sum of positive squares in only one way, i.e., 606587641 + 606587641 = 24629^2 + 24629^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=24629.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 540719 + ... + 542957.

Almost surely, 2^1213175282 is an apocalyptic number.

1213175282 is a deficient number, since it is larger than the sum of its proper divisors (787953757).

1213175282 is an frugal number, since it uses more digits than its factorization.

1213175282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502 (or 2252 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 1213175282 is about 34830.6658276870. The cubic root of 1213175282 is about 1066.5335403953.

Multiplying 1213175282 by its sum of digits (32), we get a square (38821609024 = 197032²).

The spelling of 1213175282 in words is "one billion, two hundred thirteen million, one hundred seventy-five thousand, two hundred eighty-two".