147453809 has 2 divisors, whose sum is σ = 147453810. Its totient is φ = 147453808.

The previous prime is 147453799. The next prime is 147453821. The reversal of 147453809 is 908354741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142874209 + 4579600 = 11953^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 147453809 - 2¹² = 147449713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (147453109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73726904 + 73726905.

It is an arithmetic number, because the mean of its divisors is an integer number (73726905).

Almost surely, 2^147453809 is an apocalyptic number.

It is an amenable number.

147453809 is a deficient number, since it is larger than the sum of its proper divisors (1).

147453809 is an equidigital number, since it uses as much as digits as its factorization.

147453809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 147453809 is about 12143.0559992121. The cubic root of 147453809 is about 528.3057431570.

The spelling of 147453809 in words is "one hundred forty-seven million, four hundred fifty-three thousand, eight hundred nine".