13542069 has 4 divisors (see below), whose sum is σ = 18056096. Its totient is φ = 9028044.

The previous prime is 13542059. The next prime is 13542097. The reversal of 13542069 is 96024531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13542069 - 2¹² = 13537973 is a prime.

It is a super-2 number, since 2×13542069² = 366775265601522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13542029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2257009 + ... + 2257014.

It is an arithmetic number, because the mean of its divisors is an integer number (4514024).

Almost surely, 2^13542069 is an apocalyptic number.

It is an amenable number.

13542069 is a deficient number, since it is larger than the sum of its proper divisors (4514027).

13542069 is an equidigital number, since it uses as much as digits as its factorization.

13542069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514026.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 13542069 is about 3679.9550268991. The cubic root of 13542069 is about 238.3572360441.

The spelling of 13542069 in words is "thirteen million, five hundred forty-two thousand, sixty-nine".