1500015140 has 48 divisors (see below), whose sum is σ = 3509336880. Its totient is φ = 534750720.

The previous prime is 1500015137. The next prime is 1500015151. The reversal of 1500015140 is 415100051.

It can be written as a sum of positive squares in 8 ways, for example, as 24226084 + 1475789056 = 4922^2 + 38416^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91931 + ... + 107010.

It is an arithmetic number, because the mean of its divisors is an integer number (73111185).

Almost surely, 2^1500015140 is an apocalyptic number.

1500015140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1500015140 is an abundant number, since it is smaller than the sum of its proper divisors (2009321740).

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

1500015140 is a wasteful number, since it uses less digits than its factorization.

1500015140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198992 (or 198990 counting only the distinct ones).

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

The square root of 1500015140 is about 38730.0289181405. The cubic root of 1500015140 is about 1144.7180938678.

Adding to 1500015140 its reverse (415100051), we get a palindrome (1915115191).

The spelling of 1500015140 in words is "one billion, five hundred million, fifteen thousand, one hundred forty".