9148739 has 2 divisors, whose sum is σ = 9148740. Its totient is φ = 9148738.

The previous prime is 9148729. The next prime is 9148757. The reversal of 9148739 is 9378419.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9148739 - 2¹⁶ = 9083203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9148696 and 9148705.

It is not a weakly prime, because it can be changed into another prime (9148729) 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 as a sum of consecutive naturals, namely, 4574369 + 4574370.

It is an arithmetic number, because the mean of its divisors is an integer number (4574370).

Almost surely, 2^9148739 is an apocalyptic number.

9148739 is a deficient number, since it is larger than the sum of its proper divisors (1).

9148739 is an equidigital number, since it uses as much as digits as its factorization.

9148739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 9148739 is about 3024.6882483985. The cubic root of 9148739 is about 209.1480144705.

The spelling of 9148739 in words is "nine million, one hundred forty-eight thousand, seven hundred thirty-nine".