1125451104 has 96 divisors (see below), whose sum is σ = 3017274624. Its totient is φ = 367234560.

The previous prime is 1125451099. The next prime is 1125451109. The reversal of 1125451104 is 4011545211.

It is an interprime number because it is at equal distance from previous prime (1125451099) and next prime (1125451109).

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125451109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110502 + ... + 1111514.

It is an arithmetic number, because the mean of its divisors is an integer number (31429944).

Almost surely, 2^1125451104 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 1125451104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1508637312).

1125451104 is an abundant number, since it is smaller than the sum of its proper divisors (1891823520).

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

1125451104 is a wasteful number, since it uses less digits than its factorization.

1125451104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1125451104 is about 33547.7436499089. The cubic root of 1125451104 is about 1040.1809054138.

Adding to 1125451104 its reverse (4011545211), we get a palindrome (5136996315).

The spelling of 1125451104 in words is "one billion, one hundred twenty-five million, four hundred fifty-one thousand, one hundred four".