1500071530 has 16 divisors (see below), whose sum is σ = 2700826920. Its totient is φ = 599873472.

The previous prime is 1500071473. The next prime is 1500071539. The reversal of 1500071530 is 351700051.

It can be written as a sum of positive squares in 4 ways, for example, as 1389127441 + 110944089 = 37271^2 + 10533^2 .

It is not an unprimeable number, because it can be changed into a prime (1500071539) 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, 26356 + ... + 60784.

Almost surely, 2^1500071530 is an apocalyptic number.

1500071530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1500071530 is a deficient number, since it is larger than the sum of its proper divisors (1200755390).

1500071530 is a wasteful number, since it uses less digits than its factorization.

1500071530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38793.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 1500071530 is about 38730.7568993946. The cubic root of 1500071530 is about 1144.7324381329.

Adding to 1500071530 its reverse (351700051), we get a palindrome (1851771581).

The spelling of 1500071530 in words is "one billion, five hundred million, seventy-one thousand, five hundred thirty".