1313971485 has 32 divisors (see below), whose sum is σ = 2247291648. Its totient is φ = 653959680.

The previous prime is 1313971481. The next prime is 1313971489. The reversal of 1313971485 is 5841793131.

It is an interprime number because it is at equal distance from previous prime (1313971481) and next prime (1313971489).

It is not a de Polignac number, because 1313971485 - 2² = 1313971481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313971481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32302 + ... + 60591.

It is an arithmetic number, because the mean of its divisors is an integer number (70227864).

Almost surely, 2^1313971485 is an apocalyptic number.

1313971485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313971485 is a deficient number, since it is larger than the sum of its proper divisors (933320163).

1313971485 is a wasteful number, since it uses less digits than its factorization.

1313971485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92965.

The product of its digits is 90720, while the sum is 42.

The square root of 1313971485 is about 36248.7445989513. The cubic root of 1313971485 is about 1095.2888002026.

The spelling of 1313971485 in words is "one billion, three hundred thirteen million, nine hundred seventy-one thousand, four hundred eighty-five".