1266213 has 8 divisors (see below), whose sum is σ = 1818208. Its totient is φ = 779184.

The previous prime is 1266197. The next prime is 1266229. The reversal of 1266213 is 3126621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1266197) and next prime (1266229).

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

It is not a de Polignac number, because 1266213 - 2⁴ = 1266197 is a prime.

It is a super-2 number, since 2×1266213² = 3206590722738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1266213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266263) 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, 16195 + ... + 16272.

It is an arithmetic number, because the mean of its divisors is an integer number (227276).

2^1266213 is an apocalyptic number.

1266213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1266213 is a deficient number, since it is larger than the sum of its proper divisors (551995).

1266213 is a wasteful number, since it uses less digits than its factorization.

1266213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32483.

The product of its digits is 432, while the sum is 21.

The square root of 1266213 is about 1125.2613029870. The cubic root of 1266213 is about 108.1854666412.

The spelling of 1266213 in words is "one million, two hundred sixty-six thousand, two hundred thirteen".