9912137 has 2 divisors, whose sum is σ = 9912138. Its totient is φ = 9912136.

The previous prime is 9912121. The next prime is 9912143. The reversal of 9912137 is 7312199.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9616201 + 295936 = 3101^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 9912137 - 2⁴ = 9912121 is a prime.

It is not a weakly prime, because it can be changed into another prime (9912937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4956068 + 4956069.

It is an arithmetic number, because the mean of its divisors is an integer number (4956069).

Almost surely, 2^9912137 is an apocalyptic number.

It is an amenable number.

9912137 is a deficient number, since it is larger than the sum of its proper divisors (1).

9912137 is an equidigital number, since it uses as much as digits as its factorization.

9912137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 32.

The square root of 9912137 is about 3148.3546496543. The cubic root of 9912137 is about 214.8106282749.

The spelling of 9912137 in words is "nine million, nine hundred twelve thousand, one hundred thirty-seven".