1485649987 has 2 divisors, whose sum is σ = 1485649988. Its totient is φ = 1485649986.

The previous prime is 1485649973. The next prime is 1485649993. The reversal of 1485649987 is 7899465841.

It is a strong prime.

It is an emirp because it is prime and its reverse (7899465841) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1485649987 is a prime.

It is a super-3 number, since 3×1485649987³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1485649967) 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, 742824993 + 742824994.

It is an arithmetic number, because the mean of its divisors is an integer number (742824994).

Almost surely, 2^1485649987 is an apocalyptic number.

1485649987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1485649987 is an equidigital number, since it uses as much as digits as its factorization.

1485649987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17418240, while the sum is 61.

The square root of 1485649987 is about 38544.1303832373. The cubic root of 1485649987 is about 1141.0521698178.

The spelling of 1485649987 in words is "one billion, four hundred eighty-five million, six hundred forty-nine thousand, nine hundred eighty-seven".