1015145000 has 80 divisors (see below), whose sum is σ = 2460852900. Its totient is φ = 392000000.

The previous prime is 1015144993. The next prime is 1015145009. The reversal of 1015145000 is 5415101.

It can be written as a sum of positive squares in 10 ways, for example, as 94750756 + 920394244 = 9734^2 + 30338^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1015145000.

It is not an unprimeable number, because it can be changed into a prime (1015145009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 141500 + ... + 148500.

Almost surely, 2^1015145000 is an apocalyptic number.

1015145000 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 1015145000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230426450).

1015145000 is an abundant number, since it is smaller than the sum of its proper divisors (1445707900).

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

1015145000 is an equidigital number, since it uses as much as digits as its factorization.

1015145000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7056 (or 7037 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1015145000 is about 31861.3402103552. The cubic root of 1015145000 is about 1005.0230599562.

The spelling of 1015145000 in words is "one billion, fifteen million, one hundred forty-five thousand".