7256149 has 2 divisors, whose sum is σ = 7256150. Its totient is φ = 7256148.

The previous prime is 7256147. The next prime is 7256153. The reversal of 7256149 is 9416527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6604900 + 651249 = 2570^2 + 807^2 .

It is a cyclic number.

It is not a de Polignac number, because 7256149 - 2¹ = 7256147 is a prime.

Together with 7256147, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7256141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3628074 + 3628075.

It is an arithmetic number, because the mean of its divisors is an integer number (3628075).

Almost surely, 2^7256149 is an apocalyptic number.

It is an amenable number.

7256149 is a deficient number, since it is larger than the sum of its proper divisors (1).

7256149 is an equidigital number, since it uses as much as digits as its factorization.

7256149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 7256149 is about 2693.7240021947. The cubic root of 7256149 is about 193.5985338578.

The spelling of 7256149 in words is "seven million, two hundred fifty-six thousand, one hundred forty-nine".