1223143207 has 8 divisors (see below), whose sum is σ = 1436979600. Its totient is φ = 1026413760.

The previous prime is 1223143193. The next prime is 1223143247. The reversal of 1223143207 is 7023413221.

It is a happy number.

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 1223143207 - 2¹¹ = 1223141159 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 (1223143247) 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, 4276582 + ... + 4276867.

It is an arithmetic number, because the mean of its divisors is an integer number (179622450).

Almost surely, 2^1223143207 is an apocalyptic number.

1223143207 is a deficient number, since it is larger than the sum of its proper divisors (213836393).

1223143207 is a wasteful number, since it uses less digits than its factorization.

1223143207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8553473.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1223143207 is about 34973.4643265433. The cubic root of 1223143207 is about 1069.4465962351.

Adding to 1223143207 its reverse (7023413221), we get a palindrome (8246556428).

It can be divided in two parts, 122314 and 3207, that added together give a palindrome (125521).

The spelling of 1223143207 in words is "one billion, two hundred twenty-three million, one hundred forty-three thousand, two hundred seven".