1103535144 has 256 divisors, whose sum is σ = 3449952000. Its totient is φ = 325140480.

The previous prime is 1103535089. The next prime is 1103535157. The reversal of 1103535144 is 4415353011.

It is a happy number.

1103535144 is a `hidden beast` number, since 110 + 3 + 535 + 14 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4578864 + ... + 4579104.

It is an arithmetic number, because the mean of its divisors is an integer number (13476375).

Almost surely, 2^1103535144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103535144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1724976000).

1103535144 is an abundant number, since it is smaller than the sum of its proper divisors (2346416856).

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

1103535144 is a wasteful number, since it uses less digits than its factorization.

1103535144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1103535144 is about 33219.4994543867. The cubic root of 1103535144 is about 1033.3847689508.

Adding to 1103535144 its reverse (4415353011), we get a palindrome (5518888155).

The spelling of 1103535144 in words is "one billion, one hundred three million, five hundred thirty-five thousand, one hundred forty-four".