1379755 has 8 divisors (see below), whose sum is σ = 1783152. Its totient is φ = 1018848.

The previous prime is 1379753. The next prime is 1379797. The reversal of 1379755 is 5579731.

It is a happy number.

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 1379755 - 2¹ = 1379753 is a prime.

It is an Ulam number.

It is a Duffinian number.

1379755 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1379753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10549 + ... + 10678.

It is an arithmetic number, because the mean of its divisors is an integer number (222894).

2^1379755 is an apocalyptic number.

1379755 is a deficient number, since it is larger than the sum of its proper divisors (403397).

1379755 is a wasteful number, since it uses less digits than its factorization.

1379755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21245.

The product of its digits is 33075, while the sum is 37.

The square root of 1379755 is about 1174.6297288933. The cubic root of 1379755 is about 111.3270391779.

It can be divided in two parts, 1 and 379755, that added together give a triangular number (379756 = T₈₇₁).

The spelling of 1379755 in words is "one million, three hundred seventy-nine thousand, seven hundred fifty-five".