1266315 has 8 divisors (see below), whose sum is σ = 2026128. Its totient is φ = 675360.

The previous prime is 1266301. The next prime is 1266323. The reversal of 1266315 is 5136621.

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

It is not a de Polignac number, because 1266315 - 2⁸ = 1266059 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42196 + ... + 42225.

It is an arithmetic number, because the mean of its divisors is an integer number (253266).

2^1266315 is an apocalyptic number.

1266315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1266315 is a deficient number, since it is larger than the sum of its proper divisors (759813).

1266315 is an equidigital number, since it uses as much as digits as its factorization.

1266315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84429.

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

The square root of 1266315 is about 1125.3066248805. The cubic root of 1266315 is about 108.1883715293.

It can be divided in two parts, 126 and 6315, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 1266315 in words is "one million, two hundred sixty-six thousand, three hundred fifteen".