9742149 has 12 divisors (see below), whose sum is σ = 14155596. Its totient is φ = 6456192.

The previous prime is 9742147. The next prime is 9742163. The reversal of 9742149 is 9412479.

It can be written as a sum of positive squares in 2 ways, for example, as 9345249 + 396900 = 3057^2 + 630^2 .

It is not a de Polignac number, because 9742149 - 2¹ = 9742147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9742147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1572 + ... + 4685.

It is an arithmetic number, because the mean of its divisors is an integer number (1179633).

Almost surely, 2^9742149 is an apocalyptic number.

It is an amenable number.

9742149 is a deficient number, since it is larger than the sum of its proper divisors (4413447).

9742149 is a wasteful number, since it uses less digits than its factorization.

9742149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6436 (or 6433 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 9742149 is about 3121.2415798845. The cubic root of 9742149 is about 213.5755774164.

The spelling of 9742149 in words is "nine million, seven hundred forty-two thousand, one hundred forty-nine".