1103247072 has 144 divisors (see below), whose sum is σ = 3298434048. Its totient is φ = 349113600.

The previous prime is 1103247071. The next prime is 1103247109. The reversal of 1103247072 is 2707423011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103247071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 999673 + ... + 1000775.

It is an arithmetic number, because the mean of its divisors is an integer number (22905792).

Almost surely, 2^1103247072 is an apocalyptic number.

1103247072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103247072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1649217024).

1103247072 is an abundant number, since it is smaller than the sum of its proper divisors (2195186976).

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

1103247072 is a wasteful number, since it uses less digits than its factorization.

1103247072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 1103247072 is about 33215.1632842592. The cubic root of 1103247072 is about 1033.2948412532.

The spelling of 1103247072 in words is "one billion, one hundred three million, two hundred forty-seven thousand, seventy-two".