6903198149 has 4 divisors (see below), whose sum is σ = 6903882336. Its totient is φ = 6902513964.

The previous prime is 6903198121. The next prime is 6903198217. The reversal of 6903198149 is 9418913096.

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 a de Polignac number, because none of the positive numbers 2^k-6903198149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6903198097 and 6903198106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6903198119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326729 + ... + 347214.

It is an arithmetic number, because the mean of its divisors is an integer number (1725970584).

Almost surely, 2^6903198149 is an apocalyptic number.

It is an amenable number.

6903198149 is a deficient number, since it is larger than the sum of its proper divisors (684187).

6903198149 is a wasteful number, since it uses less digits than its factorization.

6903198149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684186.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 6903198149 is about 83085.4869938186. The cubic root of 6903198149 is about 1904.0723501809.

The spelling of 6903198149 in words is "six billion, nine hundred three million, one hundred ninety-eight thousand, one hundred forty-nine".