503120153 has 2 divisors, whose sum is σ = 503120154. Its totient is φ = 503120152.

The previous prime is 503120113. The next prime is 503120179. The reversal of 503120153 is 351021305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325910809 + 177209344 = 18053^2 + 13312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503120153 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 (503120113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251560076 + 251560077.

It is an arithmetic number, because the mean of its divisors is an integer number (251560077).

Almost surely, 2^503120153 is an apocalyptic number.

It is an amenable number.

503120153 is a deficient number, since it is larger than the sum of its proper divisors (1).

503120153 is an equidigital number, since it uses as much as digits as its factorization.

503120153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 503120153 is about 22430.3400107979. The cubic root of 503120153 is about 795.3480816894.

Adding to 503120153 its reverse (351021305), we get a palindrome (854141458).

The spelling of 503120153 in words is "five hundred three million, one hundred twenty thousand, one hundred fifty-three".