830390153 has 2 divisors, whose sum is σ = 830390154. Its totient is φ = 830390152.

The previous prime is 830390069. The next prime is 830390189. The reversal of 830390153 is 351093038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 825585289 + 4804864 = 28733^2 + 2192^2 .

It is a cyclic number.

It is not a de Polignac number, because 830390153 - 2⁸ = 830389897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (830390053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415195076 + 415195077.

It is an arithmetic number, because the mean of its divisors is an integer number (415195077).

Almost surely, 2^830390153 is an apocalyptic number.

It is an amenable number.

830390153 is a deficient number, since it is larger than the sum of its proper divisors (1).

830390153 is an equidigital number, since it uses as much as digits as its factorization.

830390153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 830390153 is about 28816.4909904034. The cubic root of 830390153 is about 939.9268665752.

The spelling of 830390153 in words is "eight hundred thirty million, three hundred ninety thousand, one hundred fifty-three".