13001542 has 4 divisors (see below), whose sum is σ = 19502316. Its totient is φ = 6500770.

The previous prime is 13001539. The next prime is 13001543. The reversal of 13001542 is 24510031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001543) by changing a digit.

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 as a sum of consecutive naturals, namely, 3250384 + ... + 3250387.

It is an arithmetic number, because the mean of its divisors is an integer number (4875579).

Almost surely, 2^13001542 is an apocalyptic number.

13001542 is a deficient number, since it is larger than the sum of its proper divisors (6500774).

13001542 is an equidigital number, since it uses as much as digits as its factorization.

13001542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500773.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 13001542 is about 3605.7651060489. The cubic root of 13001542 is about 235.1427652201.

Adding to 13001542 its reverse (24510031), we get a palindrome (37511573).

The spelling of 13001542 in words is "thirteen million, one thousand, five hundred forty-two".