1361206312 has 24 divisors (see below), whose sum is σ = 2568057210. Its totient is φ = 676416800.

The previous prime is 1361206307. The next prime is 1361206331. The reversal of 1361206312 is 2136021631.

It can be written as a sum of positive squares in only one way, i.e., 1093360356 + 267845956 = 33066^2 + 16366^2 .

It is a super-4 number, since 4×1361206312⁴ (a number of 38 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220062 + ... + 226162.

Almost surely, 2^1361206312 is an apocalyptic number.

It is an amenable number.

1361206312 is a deficient number, since it is larger than the sum of its proper divisors (1206850898).

1361206312 is an equidigital number, since it uses as much as digits as its factorization.

1361206312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6441 (or 6270 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1361206312 is about 36894.5295674033. The cubic root of 1361206312 is about 1108.2591308317.

Adding to 1361206312 its reverse (2136021631), we get a palindrome (3497227943).

The spelling of 1361206312 in words is "one billion, three hundred sixty-one million, two hundred six thousand, three hundred twelve".