13970149 has 4 divisors (see below), whose sum is σ = 14705440. Its totient is φ = 13234860.

The previous prime is 13970147. The next prime is 13970153. The reversal of 13970149 is 94107931.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94107931 = 19 ⋅4953049.

It is a cyclic number.

It is not a de Polignac number, because 13970149 - 2¹ = 13970147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13970147) 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, 367617 + ... + 367654.

It is an arithmetic number, because the mean of its divisors is an integer number (3676360).

Almost surely, 2^13970149 is an apocalyptic number.

13970149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13970149 is a deficient number, since it is larger than the sum of its proper divisors (735291).

13970149 is an equidigital number, since it uses as much as digits as its factorization.

13970149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735290.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 13970149 is about 3737.6662504830. Note that the first 3 decimals coincide. The cubic root of 13970149 is about 240.8428065329.

The spelling of 13970149 in words is "thirteen million, nine hundred seventy thousand, one hundred forty-nine".