13670149 has 2 divisors, whose sum is σ = 13670150. Its totient is φ = 13670148.

The previous prime is 13670143. The next prime is 13670171. The reversal of 13670149 is 94107631.

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., 7193124 + 6477025 = 2682^2 + 2545^2 .

It is a cyclic number.

It is not a de Polignac number, because 13670149 - 2⁵ = 13670117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13670149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13670143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6835074 + 6835075.

It is an arithmetic number, because the mean of its divisors is an integer number (6835075).

Almost surely, 2^13670149 is an apocalyptic number.

It is an amenable number.

13670149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13670149 is an equidigital number, since it uses as much as digits as its factorization.

13670149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13670149 is about 3697.3164592715. The cubic root of 13670149 is about 239.1063350407.

The spelling of 13670149 in words is "thirteen million, six hundred seventy thousand, one hundred forty-nine".