1500013540 has 24 divisors (see below), whose sum is σ = 3286987200. Its totient is φ = 573918048.

The previous prime is 1500013511. The next prime is 1500013549. The reversal of 1500013540 is 453100051.

It is not an unprimeable number, because it can be changed into a prime (1500013549) 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, 1629990 + ... + 1630909.

It is an arithmetic number, because the mean of its divisors is an integer number (136957800).

Almost surely, 2^1500013540 is an apocalyptic number.

1500013540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1500013540 is an abundant number, since it is smaller than the sum of its proper divisors (1786973660).

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

1500013540 is a wasteful number, since it uses less digits than its factorization.

1500013540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260931 (or 3260929 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1500013540 is about 38730.0082623281. The cubic root of 1500013540 is about 1144.7176868609.

Adding to 1500013540 its reverse (453100051), we get a palindrome (1953113591).

The spelling of 1500013540 in words is "one billion, five hundred million, thirteen thousand, five hundred forty".