1223610535 has 16 divisors (see below), whose sum is σ = 1723450176. Its totient is φ = 816369408.

The previous prime is 1223610533. The next prime is 1223610541. The reversal of 1223610535 is 5350163221.

It is a cyclic number.

It is not a de Polignac number, because 1223610535 - 2¹ = 1223610533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223610533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471142 + ... + 473731.

It is an arithmetic number, because the mean of its divisors is an integer number (107715636).

Almost surely, 2^1223610535 is an apocalyptic number.

1223610535 is a deficient number, since it is larger than the sum of its proper divisors (499839641).

1223610535 is an equidigital number, since it uses as much as digits as its factorization.

1223610535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944922.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1223610535 is about 34980.1448681963. The cubic root of 1223610535 is about 1069.5827805343.

Adding to 1223610535 its reverse (5350163221), we get a palindrome (6573773756).

The spelling of 1223610535 in words is "one billion, two hundred twenty-three million, six hundred ten thousand, five hundred thirty-five".