6499123 has 4 divisors (see below), whose sum is σ = 6605728. Its totient is φ = 6392520.

The previous prime is 6499111. The next prime is 6499147. The reversal of 6499123 is 3219946.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6499123 - 2¹³ = 6490931 is a prime.

It is a Duffinian number.

6499123 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6499183) 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, 53211 + ... + 53332.

It is an arithmetic number, because the mean of its divisors is an integer number (1651432).

Almost surely, 2^6499123 is an apocalyptic number.

6499123 is a deficient number, since it is larger than the sum of its proper divisors (106605).

6499123 is a wasteful number, since it uses less digits than its factorization.

6499123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106604.

The product of its digits is 11664, while the sum is 34.

The square root of 6499123 is about 2549.3377571440. The cubic root of 6499123 is about 186.6171640985.

The spelling of 6499123 in words is "six million, four hundred ninety-nine thousand, one hundred twenty-three".