65230381 has 2 divisors, whose sum is σ = 65230382. Its totient is φ = 65230380.

The previous prime is 65230351. The next prime is 65230387. The reversal of 65230381 is 18303256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56025225 + 9205156 = 7485^2 + 3034^2 .

It is a cyclic number.

It is not a de Polignac number, because 65230381 - 2⁵ = 65230349 is a prime.

It is a super-2 number, since 2×65230381² = 8510005210810322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65230387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32615190 + 32615191.

It is an arithmetic number, because the mean of its divisors is an integer number (32615191).

Almost surely, 2^65230381 is an apocalyptic number.

It is an amenable number.

65230381 is a deficient number, since it is larger than the sum of its proper divisors (1).

65230381 is an equidigital number, since it uses as much as digits as its factorization.

65230381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 65230381 is about 8076.5327337912. The cubic root of 65230381 is about 402.5470407837.

The spelling of 65230381 in words is "sixty-five million, two hundred thirty thousand, three hundred eighty-one".