1045145000 has 40 divisors (see below), whose sum is σ = 2448786450. Its totient is φ = 418056000.

The previous prime is 1045144973. The next prime is 1045145009. The reversal of 1045145000 is 5415401.

It can be written as a sum of positive squares in 5 ways, for example, as 174724 + 1044970276 = 418^2 + 32326^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1045145009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 99515 + ... + 109514.

Almost surely, 2^1045145000 is an apocalyptic number.

1045145000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045145000 is an abundant number, since it is smaller than the sum of its proper divisors (1403641450).

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

1045145000 is an equidigital number, since it uses as much as digits as its factorization.

1045145000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209055 (or 209036 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1045145000 is about 32328.7024175113. The cubic root of 1045145000 is about 1014.8273950794.

The spelling of 1045145000 in words is "one billion, forty-five million, one hundred forty-five thousand".