9770149 has 2 divisors, whose sum is σ = 9770150. Its totient is φ = 9770148.

The previous prime is 9770143. The next prime is 9770191. The reversal of 9770149 is 9410779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7739524 + 2030625 = 2782^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 9770149 - 2⁷ = 9770021 is a prime.

It is a super-2 number, since 2×9770149² = 190911622964402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9770143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4885074 + 4885075.

It is an arithmetic number, because the mean of its divisors is an integer number (4885075).

Almost surely, 2^9770149 is an apocalyptic number.

It is an amenable number.

9770149 is a deficient number, since it is larger than the sum of its proper divisors (1).

9770149 is an equidigital number, since it uses as much as digits as its factorization.

9770149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 9770149 is about 3125.7237561883. The cubic root of 9770149 is about 213.7799948788.

The spelling of 9770149 in words is "nine million, seven hundred seventy thousand, one hundred forty-nine".