6149561 has 4 divisors (see below), whose sum is σ = 6708624. Its totient is φ = 5590500.

The previous prime is 6149557. The next prime is 6149599. The reversal of 6149561 is 1659416.

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 not a de Polignac number, because 6149561 - 2² = 6149557 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6149551) 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, 279515 + ... + 279536.

It is an arithmetic number, because the mean of its divisors is an integer number (1677156).

Almost surely, 2^6149561 is an apocalyptic number.

It is an amenable number.

6149561 is a deficient number, since it is larger than the sum of its proper divisors (559063).

6149561 is a wasteful number, since it uses less digits than its factorization.

6149561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559062.

The product of its digits is 6480, while the sum is 32.

The square root of 6149561 is about 2479.8308410051. The cubic root of 6149561 is about 183.2095204431.

The spelling of 6149561 in words is "six million, one hundred forty-nine thousand, five hundred sixty-one".