1266354145 has 16 divisors (see below), whose sum is σ = 1737629568. Its totient is φ = 867899520.

The previous prime is 1266354143. The next prime is 1266354151. The reversal of 1266354145 is 5414536621.

1266354145 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1266354145 - 2¹ = 1266354143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1266354143) 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 15 ways as a sum of consecutive naturals, for example, 66330 + ... + 83260.

It is an arithmetic number, because the mean of its divisors is an integer number (108601848).

Almost surely, 2^1266354145 is an apocalyptic number.

It is an amenable number.

1266354145 is a deficient number, since it is larger than the sum of its proper divisors (471275423).

1266354145 is a wasteful number, since it uses less digits than its factorization.

1266354145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19080.

The product of its digits is 86400, while the sum is 37.

The square root of 1266354145 is about 35585.8700188713. The cubic root of 1266354145 is about 1081.8948630991.

The spelling of 1266354145 in words is "one billion, two hundred sixty-six million, three hundred fifty-four thousand, one hundred forty-five".