1125454000 has 80 divisors (see below), whose sum is σ = 2968801056. Its totient is φ = 409248000.

The previous prime is 1125453991. The next prime is 1125454003. The reversal of 1125454000 is 4545211.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1125454000² = 2533293412232000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1125454003) 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, 3579 + ... + 47578.

Almost surely, 2^1125454000 is an apocalyptic number.

1125454000 is a gapful number since it is divisible by the number (10) 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 1125454000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1484400528).

1125454000 is an abundant number, since it is smaller than the sum of its proper divisors (1843347056).

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

1125454000 is a wasteful number, since it uses less digits than its factorization.

1125454000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51191 (or 51175 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1125454000 is about 33547.7868122474. The cubic root of 1125454000 is about 1040.1817976075.

Adding to 1125454000 its reverse (4545211), we get a palindrome (1129999211).

The spelling of 1125454000 in words is "one billion, one hundred twenty-five million, four hundred fifty-four thousand".