1311361485 has 16 divisors (see below), whose sum is σ = 2397918336. Its totient is φ = 599479488.

The previous prime is 1311361439. The next prime is 1311361517. The reversal of 1311361485 is 5841631131.

1311361485 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1311361485 - 2⁷ = 1311361357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6244474 + ... + 6244683.

It is an arithmetic number, because the mean of its divisors is an integer number (149869896).

Almost surely, 2^1311361485 is an apocalyptic number.

1311361485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311361485 is a deficient number, since it is larger than the sum of its proper divisors (1086556851).

1311361485 is a wasteful number, since it uses less digits than its factorization.

1311361485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12489172.

The product of its digits is 8640, while the sum is 33.

The square root of 1311361485 is about 36212.7254566679. The cubic root of 1311361485 is about 1094.5631125493.

The spelling of 1311361485 in words is "one billion, three hundred eleven million, three hundred sixty-one thousand, four hundred eighty-five".