1385267487 has 8 divisors (see below), whose sum is σ = 1855089840. Its totient is φ = 919478400.

The previous prime is 1385267473. The next prime is 1385267501. The reversal of 1385267487 is 7847625831.

It is an interprime number because it is at equal distance from previous prime (1385267473) and next prime (1385267501).

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

It is not a de Polignac number, because 1385267487 - 2¹⁸ = 1385005343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385267407) 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 in 7 ways as a sum of consecutive naturals, for example, 1007514 + ... + 1008887.

It is an arithmetic number, because the mean of its divisors is an integer number (231886230).

Almost surely, 2^1385267487 is an apocalyptic number.

1385267487 is a deficient number, since it is larger than the sum of its proper divisors (469822353).

1385267487 is a wasteful number, since it uses less digits than its factorization.

1385267487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016633.

The product of its digits is 2257920, while the sum is 51.

The square root of 1385267487 is about 37219.1817078237. The cubic root of 1385267487 is about 1114.7510251333.

It can be divided in two parts, 138 and 5267487, that added together give a palindrome (5267625).

The spelling of 1385267487 in words is "one billion, three hundred eighty-five million, two hundred sixty-seven thousand, four hundred eighty-seven".