13004542 has 4 divisors (see below), whose sum is σ = 19506816. Its totient is φ = 6502270.

The previous prime is 13004539. The next prime is 13004543. The reversal of 13004542 is 24540031.

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

It is a super-2 number, since 2×13004542² = 338236225259528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13004543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3251134 + ... + 3251137.

It is an arithmetic number, because the mean of its divisors is an integer number (4876704).

Almost surely, 2^13004542 is an apocalyptic number.

13004542 is a deficient number, since it is larger than the sum of its proper divisors (6502274).

13004542 is an equidigital number, since it uses as much as digits as its factorization.

13004542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6502273.

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

The square root of 13004542 is about 3606.1810825304. The cubic root of 13004542 is about 235.1608495890.

Adding to 13004542 its reverse (24540031), we get a palindrome (37544573).

The spelling of 13004542 in words is "thirteen million, four thousand, five hundred forty-two".