1356261551 has 2 divisors, whose sum is σ = 1356261552. Its totient is φ = 1356261550.

The previous prime is 1356261521. The next prime is 1356261559. The reversal of 1356261551 is 1551626531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1356261551 - 2¹⁴ = 1356245167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1356261559) 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 as a sum of consecutive naturals, namely, 678130775 + 678130776.

It is an arithmetic number, because the mean of its divisors is an integer number (678130776).

Almost surely, 2^1356261551 is an apocalyptic number.

1356261551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356261551 is an equidigital number, since it uses as much as digits as its factorization.

1356261551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 35.

The square root of 1356261551 is about 36827.4564829014. The cubic root of 1356261551 is about 1106.9155368926.

The spelling of 1356261551 in words is "one billion, three hundred fifty-six million, two hundred sixty-one thousand, five hundred fifty-one".