1125455616 has 108 divisors (see below), whose sum is σ = 3254272840. Its totient is φ = 374077440.

The previous prime is 1125455609. The next prime is 1125455623. The reversal of 1125455616 is 6165545211.

1125455616 is a `hidden beast` number, since 11 + 25 + 4 + 5 + 5 + 616 = 666.

It is an interprime number because it is at equal distance from previous prime (1125455609) and next prime (1125455623).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1522575 + ... + 1523313.

Almost surely, 2^1125455616 is an apocalyptic number.

1125455616 is a gapful number since it is divisible by the number (16) 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 1125455616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1627136420).

1125455616 is an abundant number, since it is smaller than the sum of its proper divisors (2128817224).

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

1125455616 is an equidigital number, since it uses as much as digits as its factorization.

1125455616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422 (or 1405 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 1125455616 is about 33547.8108972851. The cubic root of 1125455616 is about 1040.1822954608.

The spelling of 1125455616 in words is "one billion, one hundred twenty-five million, four hundred fifty-five thousand, six hundred sixteen".