13842149 has 2 divisors, whose sum is σ = 13842150. Its totient is φ = 13842148.

The previous prime is 13842137. The next prime is 13842197. The reversal of 13842149 is 94124831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8958049 + 4884100 = 2993^2 + 2210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13842149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13842349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6921074 + 6921075.

It is an arithmetic number, because the mean of its divisors is an integer number (6921075).

Almost surely, 2^13842149 is an apocalyptic number.

It is an amenable number.

13842149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13842149 is an equidigital number, since it uses as much as digits as its factorization.

13842149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 13842149 is about 3720.5038637260. The cubic root of 13842149 is about 240.1049830059.

The spelling of 13842149 in words is "thirteen million, eight hundred forty-two thousand, one hundred forty-nine".