7956149 has 2 divisors, whose sum is σ = 7956150. Its totient is φ = 7956148.

The previous prime is 7956139. The next prime is 7956163. The reversal of 7956149 is 9416597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4231249 + 3724900 = 2057^2 + 1930^2 .

It is an emirp because it is prime and its reverse (9416597) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7956149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7956139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3978074 + 3978075.

It is an arithmetic number, because the mean of its divisors is an integer number (3978075).

Almost surely, 2^7956149 is an apocalyptic number.

It is an amenable number.

7956149 is a deficient number, since it is larger than the sum of its proper divisors (1).

7956149 is an equidigital number, since it uses as much as digits as its factorization.

7956149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 41.

The square root of 7956149 is about 2820.6646379887. The cubic root of 7956149 is about 199.6339052822.

The spelling of 7956149 in words is "seven million, nine hundred fifty-six thousand, one hundred forty-nine".