1266354125 has 16 divisors (see below), whose sum is σ = 1649127168. Its totient is φ = 969034000.

The previous prime is 1266354091. The next prime is 1266354139. The reversal of 1266354125 is 5214536621.

It is not a de Polignac number, because 1266354125 - 2¹⁴ = 1266337741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217361 + ... + 223110.

It is an arithmetic number, because the mean of its divisors is an integer number (103070448).

Almost surely, 2^1266354125 is an apocalyptic number.

It is an amenable number.

1266354125 is a deficient number, since it is larger than the sum of its proper divisors (382773043).

1266354125 is an equidigital number, since it uses as much as digits as its factorization.

1266354125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440509 (or 440499 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 1266354125 is about 35585.8697378608. The cubic root of 1266354125 is about 1081.8948574036.

The spelling of 1266354125 in words is "one billion, two hundred sixty-six million, three hundred fifty-four thousand, one hundred twenty-five".