1223453263 has 8 divisors (see below), whose sum is σ = 1363601520. Its totient is φ = 1090880640.

The previous prime is 1223453251. The next prime is 1223453279. The reversal of 1223453263 is 3623543221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223453263 - 2²¹ = 1221356111 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 (1223453213) 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, 1893568 + ... + 1894213.

It is an arithmetic number, because the mean of its divisors is an integer number (170450190).

Almost surely, 2^1223453263 is an apocalyptic number.

1223453263 is a deficient number, since it is larger than the sum of its proper divisors (140148257).

1223453263 is a wasteful number, since it uses less digits than its factorization.

1223453263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787817.

The product of its digits is 25920, while the sum is 31.

The square root of 1223453263 is about 34977.8967778224. The cubic root of 1223453263 is about 1069.5369536894.

Adding to 1223453263 its reverse (3623543221), we get a palindrome (4846996484).

The spelling of 1223453263 in words is "one billion, two hundred twenty-three million, four hundred fifty-three thousand, two hundred sixty-three".