1381889567 has 8 divisors (see below), whose sum is σ = 1404456000. Its totient is φ = 1359450144.

The previous prime is 1381889533. The next prime is 1381889599. The reversal of 1381889567 is 7659881831.

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

It is a cyclic number.

It is not a de Polignac number, because 1381889567 - 2⁶ = 1381889503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381889507) 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, 9692 + ... + 53457.

It is an arithmetic number, because the mean of its divisors is an integer number (175557000).

Almost surely, 2^1381889567 is an apocalyptic number.

1381889567 is a deficient number, since it is larger than the sum of its proper divisors (22566433).

1381889567 is an equidigital number, since it uses as much as digits as its factorization.

1381889567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63505.

The product of its digits is 2903040, while the sum is 56.

The square root of 1381889567 is about 37173.7752589107. The cubic root of 1381889567 is about 1113.8441955431.

The spelling of 1381889567 in words is "one billion, three hundred eighty-one million, eight hundred eighty-nine thousand, five hundred sixty-seven".