1223253634 has 8 divisors (see below), whose sum is σ = 1848887568. Its totient is φ = 606957780.

The previous prime is 1223253607. The next prime is 1223253671. The reversal of 1223253634 is 4363523221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1223253596 and 1223253605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2334192 + ... + 2334715.

It is an arithmetic number, because the mean of its divisors is an integer number (231110946).

Almost surely, 2^1223253634 is an apocalyptic number.

1223253634 is a deficient number, since it is larger than the sum of its proper divisors (625633934).

1223253634 is a wasteful number, since it uses less digits than its factorization.

1223253634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669040.

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

The square root of 1223253634 is about 34975.0430164139. The cubic root of 1223253634 is about 1069.4787789549.

Adding to 1223253634 its reverse (4363523221), we get a palindrome (5586776855).

The spelling of 1223253634 in words is "one billion, two hundred twenty-three million, two hundred fifty-three thousand, six hundred thirty-four".