13420149 has 4 divisors (see below), whose sum is σ = 17893536. Its totient is φ = 8946764.

The previous prime is 13420139. The next prime is 13420153. The reversal of 13420149 is 94102431.

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.

It is a cyclic number.

It is not a de Polignac number, because 13420149 - 2⁴ = 13420133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420139) 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, 2236689 + ... + 2236694.

It is an arithmetic number, because the mean of its divisors is an integer number (4473384).

Almost surely, 2^13420149 is an apocalyptic number.

It is an amenable number.

13420149 is a deficient number, since it is larger than the sum of its proper divisors (4473387).

13420149 is an equidigital number, since it uses as much as digits as its factorization.

13420149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473386.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 13420149 is about 3663.3521534245. The cubic root of 13420149 is about 237.6397640882.

The spelling of 13420149 in words is "thirteen million, four hundred twenty thousand, one hundred forty-nine".