1313772487 has 2 divisors, whose sum is σ = 1313772488. Its totient is φ = 1313772486.

The previous prime is 1313772457. The next prime is 1313772517. The reversal of 1313772487 is 7842773131.

It is a balanced prime because it is at equal distance from previous prime (1313772457) and next prime (1313772517).

It is a cyclic number.

It is not a de Polignac number, because 1313772487 - 2²⁷ = 1179554759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313772457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656886243 + 656886244.

It is an arithmetic number, because the mean of its divisors is an integer number (656886244).

Almost surely, 2^1313772487 is an apocalyptic number.

1313772487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313772487 is an equidigital number, since it uses as much as digits as its factorization.

1313772487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 43.

The square root of 1313772487 is about 36245.9995999559. Note that the first 3 decimals coincide. The cubic root of 1313772487 is about 1095.2335044098.

The spelling of 1313772487 in words is "one billion, three hundred thirteen million, seven hundred seventy-two thousand, four hundred eighty-seven".