1503230257 has 2 divisors, whose sum is σ = 1503230258. Its totient is φ = 1503230256.

The previous prime is 1503230237. The next prime is 1503230263. The reversal of 1503230257 is 7520323051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1322704161 + 180526096 = 36369^2 + 13436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1503230257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1503230237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 751615128 + 751615129.

It is an arithmetic number, because the mean of its divisors is an integer number (751615129).

Almost surely, 2^1503230257 is an apocalyptic number.

It is an amenable number.

1503230257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1503230257 is an equidigital number, since it uses as much as digits as its factorization.

1503230257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 1503230257 is about 38771.5134731674. The cubic root of 1503230257 is about 1145.5353692228.

The spelling of 1503230257 in words is "one billion, five hundred three million, two hundred thirty thousand, two hundred fifty-seven".