1488605257 has 2 divisors, whose sum is σ = 1488605258. Its totient is φ = 1488605256.

The previous prime is 1488605243. The next prime is 1488605267. The reversal of 1488605257 is 7525068841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 783384121 + 705221136 = 27989^2 + 26556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1488605257 is a prime.

It is a super-2 number, since 2×1488605257² = 4431891222336072098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1488605207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744302628 + 744302629.

It is an arithmetic number, because the mean of its divisors is an integer number (744302629).

Almost surely, 2^1488605257 is an apocalyptic number.

It is an amenable number.

1488605257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1488605257 is an equidigital number, since it uses as much as digits as its factorization.

1488605257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 46.

The square root of 1488605257 is about 38582.4475247489. The cubic root of 1488605257 is about 1141.8082662050.

The spelling of 1488605257 in words is "one billion, four hundred eighty-eight million, six hundred five thousand, two hundred fifty-seven".