13709142 has 32 divisors (see below), whose sum is σ = 30720000. Its totient is φ = 4531464.

The previous prime is 13709117. The next prime is 13709149. The reversal of 13709142 is 24190731.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13709149) 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 15 ways as a sum of consecutive naturals, for example, 5859 + ... + 7857.

It is an arithmetic number, because the mean of its divisors is an integer number (960000).

Almost surely, 2^13709142 is an apocalyptic number.

13709142 is an abundant number, since it is smaller than the sum of its proper divisors (17010858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13709142 is a wasteful number, since it uses less digits than its factorization.

13709142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137 (or 2131 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 13709142 is about 3702.5858531572. The cubic root of 13709142 is about 239.3334630826. Note that the first 3 decimals are identical.

Adding to 13709142 its reverse (24190731), we get a palindrome (37899873).

The spelling of 13709142 in words is "thirteen million, seven hundred nine thousand, one hundred forty-two".