3643471149 has 4 divisors (see below), whose sum is σ = 4857961536. Its totient is φ = 2428980764.

The previous prime is 3643471133. The next prime is 3643471159. The reversal of 3643471149 is 9411743463.

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: 9411743463 = 3 ⋅3137247821.

It is a cyclic number.

It is not a de Polignac number, because 3643471149 - 2⁴ = 3643471133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3643471149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643471129) 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, 607245189 + ... + 607245194.

It is an arithmetic number, because the mean of its divisors is an integer number (1214490384).

Almost surely, 2^3643471149 is an apocalyptic number.

It is an amenable number.

3643471149 is a deficient number, since it is larger than the sum of its proper divisors (1214490387).

3643471149 is a wasteful number, since it uses less digits than its factorization.

3643471149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214490386.

The product of its digits is 217728, while the sum is 42.

The square root of 3643471149 is about 60361.1725283729. The cubic root of 3643471149 is about 1538.7631533232.

The spelling of 3643471149 in words is "three billion, six hundred forty-three million, four hundred seventy-one thousand, one hundred forty-nine".