307225493 has 2 divisors, whose sum is σ = 307225494. Its totient is φ = 307225492.

The previous prime is 307225447. The next prime is 307225517. The reversal of 307225493 is 394522703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169468324 + 137757169 = 13018^2 + 11737^2 .

It is a cyclic number.

It is not a de Polignac number, because 307225493 - 2¹⁴ = 307209109 is a prime.

It is equal to p_16622387 and since 307225493 and 16622387 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (307225403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153612746 + 153612747.

It is an arithmetic number, because the mean of its divisors is an integer number (153612747).

Almost surely, 2^307225493 is an apocalyptic number.

It is an amenable number.

307225493 is a deficient number, since it is larger than the sum of its proper divisors (1).

307225493 is an equidigital number, since it uses as much as digits as its factorization.

307225493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 307225493 is about 17527.8490694095. The cubic root of 307225493 is about 674.7647963336.

The spelling of 307225493 in words is "three hundred seven million, two hundred twenty-five thousand, four hundred ninety-three".