1375810489 has 8 divisors (see below), whose sum is σ = 1423692360. Its totient is φ = 1327958016.

The previous prime is 1375810477. The next prime is 1375810511. The reversal of 1375810489 is 9840185731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 280730025 + 1095080464 = 16755^2 + 33092^2 .

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 1375810489 - 2²⁷ = 1241592761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1375810589) 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, 134649 + ... + 144505.

It is an arithmetic number, because the mean of its divisors is an integer number (177961545).

Almost surely, 2^1375810489 is an apocalyptic number.

It is an amenable number.

1375810489 is a deficient number, since it is larger than the sum of its proper divisors (47881871).

1375810489 is an equidigital number, since it uses as much as digits as its factorization.

1375810489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14699.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 1375810489 is about 37091.9194569383. The cubic root of 1375810489 is about 1112.2084886003.

The spelling of 1375810489 in words is "one billion, three hundred seventy-five million, eight hundred ten thousand, four hundred eighty-nine".