1310000538 has 32 divisors (see below), whose sum is σ = 3266496000. Its totient is φ = 340259760.

The previous prime is 1310000533. The next prime is 1310000539. The reversal of 1310000538 is 8350000131.

It is a happy number.

It is a super-2 number, since 2×1310000538² = 3432202819120578888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1310000533) by changing a digit.

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, 1417288 + ... + 1418211.

It is an arithmetic number, because the mean of its divisors is an integer number (102078000).

Almost surely, 2^1310000538 is an apocalyptic number.

1310000538 is an abundant number, since it is smaller than the sum of its proper divisors (1956495462).

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

1310000538 is a wasteful number, since it uses less digits than its factorization.

1310000538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835522.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1310000538 is about 36193.9295738940. The cubic root of 1310000538 is about 1094.1843311526.

Adding to 1310000538 its reverse (8350000131), we get a palindrome (9660000669).

The spelling of 1310000538 in words is "one billion, three hundred ten million, five hundred thirty-eight", and thus it is an aban number.