147274409 has 2 divisors, whose sum is σ = 147274410. Its totient is φ = 147274408.

The previous prime is 147274367. The next prime is 147274423. The reversal of 147274409 is 904472741.

147274409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99940009 + 47334400 = 9997^2 + 6880^2 .

It is an emirp because it is prime and its reverse (904472741) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147274409 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (147274109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73637204 + 73637205.

It is an arithmetic number, because the mean of its divisors is an integer number (73637205).

Almost surely, 2^147274409 is an apocalyptic number.

It is an amenable number.

147274409 is a deficient number, since it is larger than the sum of its proper divisors (1).

147274409 is an equidigital number, since it uses as much as digits as its factorization.

147274409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 147274409 is about 12135.6668131586. Note that the first 3 decimals coincide. The cubic root of 147274409 is about 528.0914014269.

The spelling of 147274409 in words is "one hundred forty-seven million, two hundred seventy-four thousand, four hundred nine".