1045125500 has 24 divisors (see below), whose sum is σ = 2282555184. Its totient is φ = 418050000.

The previous prime is 1045125493. The next prime is 1045125503. The reversal of 1045125500 is 55215401.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045125503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044626 + ... + 1045625.

It is an arithmetic number, because the mean of its divisors is an integer number (95106466).

Almost surely, 2^1045125500 is an apocalyptic number.

1045125500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045125500 is an abundant number, since it is smaller than the sum of its proper divisors (1237429684).

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

1045125500 is a wasteful number, since it uses less digits than its factorization.

1045125500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090270 (or 2090258 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1045125500 is about 32328.4008265178. The cubic root of 1045125500 is about 1014.8210835924.

The spelling of 1045125500 in words is "one billion, forty-five million, one hundred twenty-five thousand, five hundred".