13240522 has 4 divisors (see below), whose sum is σ = 19860786. Its totient is φ = 6620260.

The previous prime is 13240519. The next prime is 13240523. The reversal of 13240522 is 22504231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22504231 = 71 ⋅316961.

It can be written as a sum of positive squares in only one way, i.e., 13111641 + 128881 = 3621^2 + 359^2 .

It is a super-2 number, since 2×13240522² = 350622845664968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13240522.

It is not an unprimeable number, because it can be changed into a prime (13240523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3310129 + ... + 3310132.

Almost surely, 2^13240522 is an apocalyptic number.

13240522 is a deficient number, since it is larger than the sum of its proper divisors (6620264).

13240522 is an equidigital number, since it uses as much as digits as its factorization.

13240522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620263.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 13240522 is about 3638.7528083122. The cubic root of 13240522 is about 236.5747387027.

Adding to 13240522 its reverse (22504231), we get a palindrome (35744753).

The spelling of 13240522 in words is "thirteen million, two hundred forty thousand, five hundred twenty-two".