1145503104 has 32 divisors (see below), whose sum is σ = 3042743640. Its totient is φ = 381834240.

The previous prime is 1145503097. The next prime is 1145503123. The reversal of 1145503104 is 4013055411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1145503104² = 2624354722547269632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1491157 + ... + 1491924.

Almost surely, 2^1145503104 is an apocalyptic number.

It is an amenable number.

1145503104 is an abundant number, since it is smaller than the sum of its proper divisors (1897240536).

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

1145503104 is an equidigital number, since it uses as much as digits as its factorization.

1145503104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983098 (or 2983086 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1145503104 is about 33845.2818572988. The cubic root of 1145503104 is about 1046.3221603200.

Adding to 1145503104 its reverse (4013055411), we get a palindrome (5158558515).

The spelling of 1145503104 in words is "one billion, one hundred forty-five million, five hundred three thousand, one hundred four".