1361212351 has 8 divisors (see below), whose sum is σ = 1410377904. Its totient is φ = 1312698240.

The previous prime is 1361212339. The next prime is 1361212373. The reversal of 1361212351 is 1532121631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361212351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361212331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158605 + ... + 166966.

It is an arithmetic number, because the mean of its divisors is an integer number (176297238).

Almost surely, 2^1361212351 is an apocalyptic number.

1361212351 is a deficient number, since it is larger than the sum of its proper divisors (49165553).

1361212351 is a wasteful number, since it uses less digits than its factorization.

1361212351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325721.

The product of its digits is 1080, while the sum is 25.

The square root of 1361212351 is about 36894.6114087139. The cubic root of 1361212351 is about 1108.2607697620.

Adding to 1361212351 its reverse (1532121631), we get a palindrome (2893333982).

The spelling of 1361212351 in words is "one billion, three hundred sixty-one million, two hundred twelve thousand, three hundred fifty-one".