9146989 has 2 divisors, whose sum is σ = 9146990. Its totient is φ = 9146988.

The previous prime is 9146987. The next prime is 9146993. The reversal of 9146989 is 9896419.

9146989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9030025 + 116964 = 3005^2 + 342^2 .

It is a cyclic number.

It is not a de Polignac number, because 9146989 - 2¹ = 9146987 is a prime.

It is a super-2 number, since 2×9146989² = 167334815532242, which contains 22 as substring.

Together with 9146987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9146981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4573494 + 4573495.

It is an arithmetic number, because the mean of its divisors is an integer number (4573495).

Almost surely, 2^9146989 is an apocalyptic number.

It is an amenable number.

9146989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9146989 is an equidigital number, since it uses as much as digits as its factorization.

9146989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 46.

The square root of 9146989 is about 3024.3989485516. The cubic root of 9146989 is about 209.1346781202.

The spelling of 9146989 in words is "nine million, one hundred forty-six thousand, nine hundred eighty-nine".