1212263 has 4 divisors (see below), whose sum is σ = 1305528. Its totient is φ = 1119000.

The previous prime is 1212259. The next prime is 1212283. The reversal of 1212263 is 3622121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1212263 - 2² = 1212259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212283) 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, 46613 + ... + 46638.

It is an arithmetic number, because the mean of its divisors is an integer number (326382).

2^1212263 is an apocalyptic number.

1212263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1212263 is a deficient number, since it is larger than the sum of its proper divisors (93265).

1212263 is an equidigital number, since it uses as much as digits as its factorization.

1212263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93264.

The product of its digits is 144, while the sum is 17.

The square root of 1212263 is about 1101.0281558616. The cubic root of 1212263 is about 106.6266136513.

Adding to 1212263 its reverse (3622121), we get a palindrome (4834384).

The spelling of 1212263 in words is "one million, two hundred twelve thousand, two hundred sixty-three".