147298909 has 2 divisors, whose sum is σ = 147298910. Its totient is φ = 147298908.

The previous prime is 147298903. The next prime is 147298913. The reversal of 147298909 is 909892741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145805625 + 1493284 = 12075^2 + 1222^2 .

It is an emirp because it is prime and its reverse (909892741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147298909 - 2³ = 147298901 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147298901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73649454 + 73649455.

It is an arithmetic number, because the mean of its divisors is an integer number (73649455).

Almost surely, 2^147298909 is an apocalyptic number.

It is an amenable number.

147298909 is a deficient number, since it is larger than the sum of its proper divisors (1).

147298909 is an equidigital number, since it uses as much as digits as its factorization.

147298909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 147298909 is about 12136.6761924342. The cubic root of 147298909 is about 528.1206835496.

The spelling of 147298909 in words is "one hundred forty-seven million, two hundred ninety-eight thousand, nine hundred nine".