1305012522 has 16 divisors (see below), whose sum is σ = 2847300192. Its totient is φ = 395458320.

The previous prime is 1305012509. The next prime is 1305012529. The reversal of 1305012522 is 2252105031.

It is not an unprimeable number, because it can be changed into a prime (1305012529) 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, 9886393 + ... + 9886524.

It is an arithmetic number, because the mean of its divisors is an integer number (177956262).

Almost surely, 2^1305012522 is an apocalyptic number.

1305012522 is an abundant number, since it is smaller than the sum of its proper divisors (1542287670).

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

1305012522 is a wasteful number, since it uses less digits than its factorization.

1305012522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19772933.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1305012522 is about 36124.9570518776. The cubic root of 1305012522 is about 1092.7938098985.

Adding to 1305012522 its reverse (2252105031), we get a palindrome (3557117553).

The spelling of 1305012522 in words is "one billion, three hundred five million, twelve thousand, five hundred twenty-two".