1251223 has 4 divisors (see below), whose sum is σ = 1305648. Its totient is φ = 1196800.

The previous prime is 1251179. The next prime is 1251227. The reversal of 1251223 is 3221521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3221521 = 47 ⋅68543.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1251223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1251197 and 1251206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251227) 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, 27178 + ... + 27223.

It is an arithmetic number, because the mean of its divisors is an integer number (326412).

2^1251223 is an apocalyptic number.

1251223 is a deficient number, since it is larger than the sum of its proper divisors (54425).

1251223 is an equidigital number, since it uses as much as digits as its factorization.

1251223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54424.

The product of its digits is 120, while the sum is 16.

The square root of 1251223 is about 1118.5807972605. The cubic root of 1251223 is about 107.7568546986.

Adding to 1251223 its reverse (3221521), we get a palindrome (4472744).

The spelling of 1251223 in words is "one million, two hundred fifty-one thousand, two hundred twenty-three".