13779142 has 16 divisors (see below), whose sum is σ = 23430960. Its totient is φ = 6024672.

The previous prime is 13779137. The next prime is 13779149. The reversal of 13779142 is 24197731.

It is a junction number, because it is equal to n+sod(n) for n = 13779098 and 13779107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13779149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13453 + ... + 14440.

It is an arithmetic number, because the mean of its divisors is an integer number (1464435).

Almost surely, 2^13779142 is an apocalyptic number.

13779142 is a deficient number, since it is larger than the sum of its proper divisors (9651818).

13779142 is a wasteful number, since it uses less digits than its factorization.

13779142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27927.

The product of its digits is 10584, while the sum is 34.

The square root of 13779142 is about 3712.0266701628. The cubic root of 13779142 is about 239.7401237957.

The spelling of 13779142 in words is "thirteen million, seven hundred seventy-nine thousand, one hundred forty-two".