1340545522 has 4 divisors (see below), whose sum is σ = 2010818286. Its totient is φ = 670272760.

The previous prime is 1340545517. The next prime is 1340545537. The reversal of 1340545522 is 2255450431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1020099721 + 320445801 = 31939^2 + 17901^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335136379 + ... + 335136382.

Almost surely, 2^1340545522 is an apocalyptic number.

1340545522 is a deficient number, since it is larger than the sum of its proper divisors (670272764).

1340545522 is an equidigital number, since it uses as much as digits as its factorization.

1340545522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670272763.

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

The square root of 1340545522 is about 36613.4609399330. The cubic root of 1340545522 is about 1102.6233590370.

Adding to 1340545522 its reverse (2255450431), we get a palindrome (3595995953).

The spelling of 1340545522 in words is "one billion, three hundred forty million, five hundred forty-five thousand, five hundred twenty-two".