13447952149 has 4 divisors (see below), whose sum is σ = 13553841664. Its totient is φ = 13342062636.

The previous prime is 13447952131. The next prime is 13447952171. The reversal of 13447952149 is 94125974431.

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 a de Polignac number, because none of the positive numbers 2^k-13447952149 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 (13447950149) 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, 52944567 + ... + 52944820.

It is an arithmetic number, because the mean of its divisors is an integer number (3388460416).

Almost surely, 2^13447952149 is an apocalyptic number.

It is an amenable number.

13447952149 is a deficient number, since it is larger than the sum of its proper divisors (105889515).

13447952149 is a wasteful number, since it uses less digits than its factorization.

13447952149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105889514.

The product of its digits is 1088640, while the sum is 49.

The spelling of 13447952149 in words is "thirteen billion, four hundred forty-seven million, nine hundred fifty-two thousand, one hundred forty-nine".