309470201 has 2 divisors, whose sum is σ = 309470202. Its totient is φ = 309470200.

The previous prime is 309470197. The next prime is 309470207. The reversal of 309470201 is 102074903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240994576 + 68475625 = 15524^2 + 8275^2 .

It is a cyclic number.

It is not a de Polignac number, because 309470201 - 2² = 309470197 is a prime.

It is not a weakly prime, because it can be changed into another prime (309470207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154735100 + 154735101.

It is an arithmetic number, because the mean of its divisors is an integer number (154735101).

Almost surely, 2^309470201 is an apocalyptic number.

It is an amenable number.

309470201 is a deficient number, since it is larger than the sum of its proper divisors (1).

309470201 is an equidigital number, since it uses as much as digits as its factorization.

309470201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 309470201 is about 17591.7651473637. The cubic root of 309470201 is about 676.4041741408.

The spelling of 309470201 in words is "three hundred nine million, four hundred seventy thousand, two hundred one".