1387134586 has 8 divisors (see below), whose sum is σ = 2083395924. Its totient is φ = 692669280.

The previous prime is 1387134559. The next prime is 1387134589. The reversal of 1387134586 is 6854317831.

It can be written as a sum of positive squares in 2 ways, for example, as 1376039025 + 11095561 = 37095^2 + 3331^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1387134589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447075 + ... + 450166.

Almost surely, 2^1387134586 is an apocalyptic number.

1387134586 is a deficient number, since it is larger than the sum of its proper divisors (696261338).

1387134586 is an equidigital number, since it uses as much as digits as its factorization.

1387134586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898016.

The product of its digits is 483840, while the sum is 46.

The square root of 1387134586 is about 37244.2557450139. The cubic root of 1387134586 is about 1115.2516302858.

The spelling of 1387134586 in words is "one billion, three hundred eighty-seven million, one hundred thirty-four thousand, five hundred eighty-six".