1103280138 has 12 divisors (see below), whose sum is σ = 2390440338. Its totient is φ = 367760040.

The previous prime is 1103280137. The next prime is 1103280149. The reversal of 1103280138 is 8310823011.

It can be written as a sum of positive squares in only one way, i.e., 553049289 + 550230849 = 23517^2 + 23457^2 .

It is not an unprimeable number, because it can be changed into a prime (1103280131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30646653 + ... + 30646688.

Almost surely, 2^1103280138 is an apocalyptic number.

1103280138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1103280138 is an abundant number, since it is smaller than the sum of its proper divisors (1287160200).

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

1103280138 is a wasteful number, since it uses less digits than its factorization.

1103280138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61293349 (or 61293346 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1103280138 is about 33215.6610351202. The cubic root of 1103280138 is about 1033.3051642917.

The spelling of 1103280138 in words is "one billion, one hundred three million, two hundred eighty thousand, one hundred thirty-eight".