6920149 has 2 divisors, whose sum is σ = 6920150. Its totient is φ = 6920148.

The previous prime is 6920131. The next prime is 6920189. The reversal of 6920149 is 9410296.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6916900 + 3249 = 2630^2 + 57^2 .

It is a cyclic number.

It is not a de Polignac number, because 6920149 - 2¹⁵ = 6887381 is a prime.

It is an Ulam number.

It is equal to p₄₇₁₅₆₈ and since 6920149 and 471568 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6920149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6920129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3460074 + 3460075.

It is an arithmetic number, because the mean of its divisors is an integer number (3460075).

Almost surely, 2^6920149 is an apocalyptic number.

It is an amenable number.

6920149 is a deficient number, since it is larger than the sum of its proper divisors (1).

6920149 is an equidigital number, since it uses as much as digits as its factorization.

6920149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 6920149 is about 2630.6176080913. The cubic root of 6920149 is about 190.5629563919.

The spelling of 6920149 in words is "six million, nine hundred twenty thousand, one hundred forty-nine".