13142530 has 32 divisors (see below), whose sum is σ = 25338096. Its totient is φ = 4890624.

The previous prime is 13142473. The next prime is 13142537. The reversal of 13142530 is 3524131.

It can be written as a sum of positive squares in 8 ways, for example, as 7144929 + 5997601 = 2673^2 + 2449^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13142498 and 13142507.

It is not an unprimeable number, because it can be changed into a prime (13142537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16092 + ... + 16888.

Almost surely, 2^13142530 is an apocalyptic number.

13142530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13142530 is a deficient number, since it is larger than the sum of its proper divisors (12195566).

13142530 is a wasteful number, since it uses less digits than its factorization.

13142530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13142530 is about 3625.2627490983. The cubic root of 13142530 is about 235.9896696618.

Adding to 13142530 its reverse (3524131), we get a palindrome (16666661).

It can be divided in two parts, 1314 and 2530, that added together give a square (3844 = 62²).

The spelling of 13142530 in words is "thirteen million, one hundred forty-two thousand, five hundred thirty".