307398061 has 2 divisors, whose sum is σ = 307398062. Its totient is φ = 307398060.

The previous prime is 307398043. The next prime is 307398071. The reversal of 307398061 is 160893703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172396900 + 135001161 = 13130^2 + 11619^2 .

It is an emirp because it is prime and its reverse (160893703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 307398061 - 2¹¹ = 307396013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 307398061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (307398071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153699030 + 153699031.

It is an arithmetic number, because the mean of its divisors is an integer number (153699031).

Almost surely, 2^307398061 is an apocalyptic number.

It is an amenable number.

307398061 is a deficient number, since it is larger than the sum of its proper divisors (1).

307398061 is an equidigital number, since it uses as much as digits as its factorization.

307398061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 307398061 is about 17532.7710587916. The cubic root of 307398061 is about 674.8911107388.

The spelling of 307398061 in words is "three hundred seven million, three hundred ninety-eight thousand, sixty-one".