5149649 has 4 divisors (see below), whose sum is σ = 5259264. Its totient is φ = 5040036.

The previous prime is 5149643. The next prime is 5149667. The reversal of 5149649 is 9469415.

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 5149649 - 2⁸ = 5149393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5149643) 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, 54737 + ... + 54830.

It is an arithmetic number, because the mean of its divisors is an integer number (1314816).

Almost surely, 2^5149649 is an apocalyptic number.

It is an amenable number.

5149649 is a deficient number, since it is larger than the sum of its proper divisors (109615).

5149649 is a wasteful number, since it uses less digits than its factorization.

5149649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109614.

The product of its digits is 38880, while the sum is 38.

The square root of 5149649 is about 2269.2838077244. The cubic root of 5149649 is about 172.6868269188.

The spelling of 5149649 in words is "five million, one hundred forty-nine thousand, six hundred forty-nine".