1125308500 has 48 divisors (see below), whose sum is σ = 2466015552. Its totient is φ = 448596000.

The previous prime is 1125308467. The next prime is 1125308533. The reversal of 1125308500 is 58035211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1125308467) and next prime (1125308533).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149835 + ... + 157165.

It is an arithmetic number, because the mean of its divisors is an integer number (51375324).

Almost surely, 2^1125308500 is an apocalyptic number.

1125308500 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 1125308500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233007776).

1125308500 is an abundant number, since it is smaller than the sum of its proper divisors (1340707052).

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

1125308500 is a wasteful number, since it uses less digits than its factorization.

1125308500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7657 (or 7645 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1125308500 is about 33545.6181937373. The cubic root of 1125308500 is about 1040.1369703721.

The spelling of 1125308500 in words is "one billion, one hundred twenty-five million, three hundred eight thousand, five hundred".