1223100738 has 12 divisors (see below), whose sum is σ = 2650051638. Its totient is φ = 407700240.

The previous prime is 1223100733. The next prime is 1223100763. The reversal of 1223100738 is 8370013221.

It can be written as a sum of positive squares in only one way, i.e., 645515649 + 577585089 = 25407^2 + 24033^2 .

It is a super-2 number, since 2×1223100738² = 2991950830592289288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223100733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33975003 + ... + 33975038.

Almost surely, 2^1223100738 is an apocalyptic number.

1223100738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1223100738 is an abundant number, since it is smaller than the sum of its proper divisors (1426950900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223100738 is a wasteful number, since it uses less digits than its factorization.

1223100738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67950049 (or 67950046 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1223100738 is about 34972.8571609470. The cubic root of 1223100738 is about 1069.4342186021.

Adding to 1223100738 its reverse (8370013221), we get a palindrome (9593113959).

The spelling of 1223100738 in words is "one billion, two hundred twenty-three million, one hundred thousand, seven hundred thirty-eight".