15543452149 has 8 divisors (see below), whose sum is σ = 16047940608. Its totient is φ = 15044934240.

The previous prime is 15543452147. The next prime is 15543452159. The reversal of 15543452149 is 94125434551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15543452149 - 2¹ = 15543452147 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 (15543452143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487347 + ... + 1497760.

It is an arithmetic number, because the mean of its divisors is an integer number (2005992576).

Almost surely, 2^15543452149 is an apocalyptic number.

It is an amenable number.

15543452149 is a deficient number, since it is larger than the sum of its proper divisors (504488459).

15543452149 is a wasteful number, since it uses less digits than its factorization.

15543452149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985275.

The product of its digits is 432000, while the sum is 43.

The spelling of 15543452149 in words is "fifteen billion, five hundred forty-three million, four hundred fifty-two thousand, one hundred forty-nine".