1258479487 has 2 divisors, whose sum is σ = 1258479488. Its totient is φ = 1258479486.

The previous prime is 1258479457. The next prime is 1258479511. The reversal of 1258479487 is 7849748521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1258479487 - 2⁷ = 1258479359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1258479407) 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, 629239743 + 629239744.

It is an arithmetic number, because the mean of its divisors is an integer number (629239744).

Almost surely, 2^1258479487 is an apocalyptic number.

1258479487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1258479487 is an equidigital number, since it uses as much as digits as its factorization.

1258479487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4515840, while the sum is 55.

The square root of 1258479487 is about 35475.0544326573. The cubic root of 1258479487 is about 1079.6476579830.

The spelling of 1258479487 in words is "one billion, two hundred fifty-eight million, four hundred seventy-nine thousand, four hundred eighty-seven".