1354266649 has 2 divisors, whose sum is σ = 1354266650. Its totient is φ = 1354266648.

The previous prime is 1354266643. The next prime is 1354266671. The reversal of 1354266649 is 9466624531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 698650624 + 655616025 = 26432^2 + 25605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1354266649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1354266599 and 1354266608.

It is not a weakly prime, because it can be changed into another prime (1354266643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677133324 + 677133325.

It is an arithmetic number, because the mean of its divisors is an integer number (677133325).

Almost surely, 2^1354266649 is an apocalyptic number.

It is an amenable number.

1354266649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354266649 is an equidigital number, since it uses as much as digits as its factorization.

1354266649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 46.

The square root of 1354266649 is about 36800.3620770231. The cubic root of 1354266649 is about 1106.3725561860.

The spelling of 1354266649 in words is "one billion, three hundred fifty-four million, two hundred sixty-six thousand, six hundred forty-nine".