1266513 has 8 divisors (see below), whose sum is σ = 1698048. Its totient is φ = 839664.

The previous prime is 1266511. The next prime is 1266523. The reversal of 1266513 is 3156621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1266513 - 2¹ = 1266511 is a prime.

1266513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1266511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481 + ... + 1662.

It is an arithmetic number, because the mean of its divisors is an integer number (212256).

2^1266513 is an apocalyptic number.

It is an amenable number.

1266513 is a deficient number, since it is larger than the sum of its proper divisors (431535).

1266513 is a wasteful number, since it uses less digits than its factorization.

1266513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343.

The product of its digits is 1080, while the sum is 24.

The square root of 1266513 is about 1125.3945974635. The cubic root of 1266513 is about 108.1940099845.

The spelling of 1266513 in words is "one million, two hundred sixty-six thousand, five hundred thirteen".