1386741187 has 8 divisors (see below), whose sum is σ = 1581261696. Its totient is φ = 1204770432.

The previous prime is 1386741173. The next prime is 1386741193. The reversal of 1386741187 is 7811476831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1386741187 is a prime.

It is a super-2 number, since 2×1386741187² = 3846102239444337938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386742187) 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 7 ways as a sum of consecutive naturals, for example, 3137203 + ... + 3137644.

It is an arithmetic number, because the mean of its divisors is an integer number (197657712).

Almost surely, 2^1386741187 is an apocalyptic number.

1386741187 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1386741187 is a deficient number, since it is larger than the sum of its proper divisors (194520509).

1386741187 is a wasteful number, since it uses less digits than its factorization.

1386741187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6274877.

The product of its digits is 225792, while the sum is 46.

The square root of 1386741187 is about 37238.9740325912. The cubic root of 1386741187 is about 1115.1461898180.

The spelling of 1386741187 in words is "one billion, three hundred eighty-six million, seven hundred forty-one thousand, one hundred eighty-seven".