1395631485 has 32 divisors (see below), whose sum is σ = 2486880000. Its totient is φ = 742609728.

The previous prime is 1395631481. The next prime is 1395631499. The reversal of 1395631485 is 5841365931.

1395631485 is a `hidden beast` number, since 1 + 3 + 9 + 5 + 631 + 4 + 8 + 5 = 666.

It is not a de Polignac number, because 1395631485 - 2² = 1395631481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1395631485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395631481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47491 + ... + 71039.

It is an arithmetic number, because the mean of its divisors is an integer number (77715000).

Almost surely, 2^1395631485 is an apocalyptic number.

1395631485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1395631485 is a deficient number, since it is larger than the sum of its proper divisors (1091248515).

1395631485 is a wasteful number, since it uses less digits than its factorization.

1395631485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24002 (or 23996 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 1395631485 is about 37358.1515201167. The cubic root of 1395631485 is about 1117.5241560474.

The spelling of 1395631485 in words is "one billion, three hundred ninety-five million, six hundred thirty-one thousand, four hundred eighty-five".