1375489405 has 8 divisors (see below), whose sum is σ = 1650948192. Its totient is φ = 1100150928.

The previous prime is 1375489399. The next prime is 1375489457. The reversal of 1375489405 is 5049845731.

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 1375489405 - 2⁷ = 1375489277 is a prime.

It is a super-2 number, since 2×1375489405² = 3783942206534508050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2647 + ... + 52516.

It is an arithmetic number, because the mean of its divisors is an integer number (206368524).

Almost surely, 2^1375489405 is an apocalyptic number.

It is an amenable number.

1375489405 is a deficient number, since it is larger than the sum of its proper divisors (275458787).

1375489405 is an equidigital number, since it uses as much as digits as its factorization.

1375489405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60155.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 1375489405 is about 37087.5909840475. The cubic root of 1375489405 is about 1112.1219601776.

The spelling of 1375489405 in words is "one billion, three hundred seventy-five million, four hundred eighty-nine thousand, four hundred five".