1103397885 has 24 divisors (see below), whose sum is σ = 1913815800. Its totient is φ = 588091392.

The previous prime is 1103397877. The next prime is 1103397899. The reversal of 1103397885 is 5887933011.

It can be written as a sum of positive squares in 4 ways, for example, as 731756601 + 371641284 = 27051^2 + 19278^2 .

It is not a de Polignac number, because 1103397885 - 2³ = 1103397877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1103397885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69141 + ... + 83589.

It is an arithmetic number, because the mean of its divisors is an integer number (79742325).

Almost surely, 2^1103397885 is an apocalyptic number.

1103397885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1103397885 is a deficient number, since it is larger than the sum of its proper divisors (810417915).

1103397885 is a wasteful number, since it uses less digits than its factorization.

1103397885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16157 (or 16154 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 1103397885 is about 33217.4334499220. The cubic root of 1103397885 is about 1033.3419226364.

The spelling of 1103397885 in words is "one billion, one hundred three million, three hundred ninety-seven thousand, eight hundred eighty-five".