1375705 has 8 divisors (see below), whose sum is σ = 1657152. Its totient is φ = 1096368.

The previous prime is 1375681. The next prime is 1375709. The reversal of 1375705 is 5075731.

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-1375705 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2242 + ... + 2788.

It is an arithmetic number, because the mean of its divisors is an integer number (207144).

2^1375705 is an apocalyptic number.

It is an amenable number.

1375705 is a deficient number, since it is larger than the sum of its proper divisors (281447).

1375705 is an equidigital number, since it uses as much as digits as its factorization.

1375705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 1375705 is about 1172.9045144427. The cubic root of 1375705 is about 111.2180062021.

It can be divided in two parts, 1375 and 705, that added together give a triangular number (2080 = T₆₄).

The spelling of 1375705 in words is "one million, three hundred seventy-five thousand, seven hundred five".