1103139481 has 16 divisors (see below), whose sum is σ = 1144014480. Its totient is φ = 1063019520.

The previous prime is 1103139467. The next prime is 1103139511. The reversal of 1103139481 is 1849313011.

It can be written as a sum of positive squares in 8 ways, for example, as 375003225 + 728136256 = 19365^2 + 26984^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103139481 - 2⁷ = 1103139353 is a prime.

It is a super-2 number, since 2×1103139481² = 2433833429081898722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103139421) 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 15 ways as a sum of consecutive naturals, for example, 1555555 + ... + 1556263.

It is an arithmetic number, because the mean of its divisors is an integer number (71500905).

Almost surely, 2^1103139481 is an apocalyptic number.

It is an amenable number.

1103139481 is a deficient number, since it is larger than the sum of its proper divisors (40874999).

1103139481 is a wasteful number, since it uses less digits than its factorization.

1103139481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1103139481 is about 33213.5436381004. The cubic root of 1103139481 is about 1033.2612504580.

The spelling of 1103139481 in words is "one billion, one hundred three million, one hundred thirty-nine thousand, four hundred eighty-one".