1356342461 has 2 divisors, whose sum is σ = 1356342462. Its totient is φ = 1356342460.

The previous prime is 1356342431. The next prime is 1356342469. The reversal of 1356342461 is 1642436531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1353798436 + 2544025 = 36794^2 + 1595^2 .

It is an emirp because it is prime and its reverse (1642436531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1356342461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1356342469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678171230 + 678171231.

It is an arithmetic number, because the mean of its divisors is an integer number (678171231).

Almost surely, 2^1356342461 is an apocalyptic number.

It is an amenable number.

1356342461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356342461 is an equidigital number, since it uses as much as digits as its factorization.

1356342461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 1356342461 is about 36828.5549675792. The cubic root of 1356342461 is about 1106.9375480735.

Adding to 1356342461 its reverse (1642436531), we get a palindrome (2998778992).

The spelling of 1356342461 in words is "one billion, three hundred fifty-six million, three hundred forty-two thousand, four hundred sixty-one".