13421454149 has 4 divisors (see below), whose sum is σ = 13473677964. Its totient is φ = 13369230336.

The previous prime is 13421454143. The next prime is 13421454169. The reversal of 13421454149 is 94145412431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6195264100 + 7226190049 = 78710^2 + 85007^2 .

It is a cyclic number.

It is not a de Polignac number, because 13421454149 - 2⁸ = 13421453893 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 (13421454143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26111522 + ... + 26112035.

It is an arithmetic number, because the mean of its divisors is an integer number (3368419491).

Almost surely, 2^13421454149 is an apocalyptic number.

It is an amenable number.

13421454149 is a deficient number, since it is larger than the sum of its proper divisors (52223815).

13421454149 is an equidigital number, since it uses as much as digits as its factorization.

13421454149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52223814.

The product of its digits is 69120, while the sum is 38.

The spelling of 13421454149 in words is "thirteen billion, four hundred twenty-one million, four hundred fifty-four thousand, one hundred forty-nine".