1245352522 has 16 divisors (see below), whose sum is σ = 1932908544. Its totient is φ = 601146000.

The previous prime is 1245352513. The next prime is 1245352529. The reversal of 1245352522 is 2252535421.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1245352529) 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 7 ways as a sum of consecutive naturals, for example, 2247 + ... + 49957.

It is an arithmetic number, because the mean of its divisors is an integer number (120806784).

Almost surely, 2^1245352522 is an apocalyptic number.

1245352522 is a deficient number, since it is larger than the sum of its proper divisors (687556022).

1245352522 is a wasteful number, since it uses less digits than its factorization.

1245352522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48165.

The product of its digits is 24000, while the sum is 31.

The square root of 1245352522 is about 35289.5525899663. The cubic root of 1245352522 is about 1075.8806620135.

Adding to 1245352522 its reverse (2252535421), we get a palindrome (3497887943).

The spelling of 1245352522 in words is "one billion, two hundred forty-five million, three hundred fifty-two thousand, five hundred twenty-two".