1287059413 has 8 divisors (see below), whose sum is σ = 1320534936. Its totient is φ = 1253683200.

The previous prime is 1287059401. The next prime is 1287059429. The reversal of 1287059413 is 3149507821.

It can be written as a sum of positive squares in 4 ways, for example, as 5276209 + 1281783204 = 2297^2 + 35802^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1287059413 - 2⁵ = 1287059381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287059113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1795 + ... + 50767.

It is an arithmetic number, because the mean of its divisors is an integer number (165066867).

Almost surely, 2^1287059413 is an apocalyptic number.

It is an amenable number.

1287059413 is a deficient number, since it is larger than the sum of its proper divisors (33475523).

1287059413 is an equidigital number, since it uses as much as digits as its factorization.

1287059413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49655.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1287059413 is about 35875.6102805235. The cubic root of 1287059413 is about 1087.7594502824.

The spelling of 1287059413 in words is "one billion, two hundred eighty-seven million, fifty-nine thousand, four hundred thirteen".