1266530 has 8 divisors (see below), whose sum is σ = 2279772. Its totient is φ = 506608.

The previous prime is 1266527. The next prime is 1266539. The reversal of 1266530 is 356621.

It can be written as a sum of positive squares in 2 ways, for example, as 1168561 + 97969 = 1081^2 + 313^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1266496 and 1266505.

It is not an unprimeable number, because it can be changed into a prime (1266539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63317 + ... + 63336.

2^1266530 is an apocalyptic number.

1266530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266530 is a deficient number, since it is larger than the sum of its proper divisors (1013242).

1266530 is a wasteful number, since it uses less digits than its factorization.

1266530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126660.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1266530 is about 1125.4021503445. The cubic root of 1266530 is about 108.1944940669.

Subtracting from 1266530 its reverse (356621), we obtain a palindrome (909909).

The spelling of 1266530 in words is "one million, two hundred sixty-six thousand, five hundred thirty".