13523042 has 12 divisors (see below), whose sum is σ = 21965490. Its totient is φ = 6241248.

The previous prime is 13523039. The next prime is 13523063. The reversal of 13523042 is 24032531.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11417641 + 2105401 = 3379^2 + 1451^2 .

13523042 is a modest number, since divided by 3042 gives 1352 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19667 + ... + 20342.

Almost surely, 2^13523042 is an apocalyptic number.

13523042 is a deficient number, since it is larger than the sum of its proper divisors (8442448).

13523042 is a wasteful number, since it uses less digits than its factorization.

13523042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40037 (or 40024 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13523042 is about 3677.3688963714. The cubic root of 13523042 is about 238.2455507758.

Adding to 13523042 its reverse (24032531), we get a palindrome (37555573).

It can be divided in two parts, 1352 and 3042, that multiplied together give a square (4112784 = 2028²).

The spelling of 13523042 in words is "thirteen million, five hundred twenty-three thousand, forty-two".