389561149 has 4 divisors (see below), whose sum is σ = 389604640. Its totient is φ = 389517660.

The previous prime is 389561113. The next prime is 389561177. The reversal of 389561149 is 941165983.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 389561149 - 2¹¹ = 389559101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389561099 and 389561108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389561449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2817 + ... + 28054.

It is an arithmetic number, because the mean of its divisors is an integer number (97401160).

Almost surely, 2^389561149 is an apocalyptic number.

It is an amenable number.

389561149 is a deficient number, since it is larger than the sum of its proper divisors (43491).

389561149 is a wasteful number, since it uses less digits than its factorization.

389561149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43490.

The product of its digits is 233280, while the sum is 46.

The square root of 389561149 is about 19737.3034885721. The cubic root of 389561149 is about 730.3402110979.

The spelling of 389561149 in words is "three hundred eighty-nine million, five hundred sixty-one thousand, one hundred forty-nine".