1356634453 has 2 divisors, whose sum is σ = 1356634454. Its totient is φ = 1356634452.

The previous prime is 1356634451. The next prime is 1356634457. The reversal of 1356634453 is 3544366531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1335317764 + 21316689 = 36542^2 + 4617^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356634453 - 2¹ = 1356634451 is a prime.

Together with 1356634451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1356634451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678317226 + 678317227.

It is an arithmetic number, because the mean of its divisors is an integer number (678317227).

Almost surely, 2^1356634453 is an apocalyptic number.

It is an amenable number.

1356634453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356634453 is an equidigital number, since it uses as much as digits as its factorization.

1356634453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 40.

The square root of 1356634453 is about 36832.5189608313. The cubic root of 1356634453 is about 1107.0169758303.

The spelling of 1356634453 in words is "one billion, three hundred fifty-six million, six hundred thirty-four thousand, four hundred fifty-three".