1379545 has 8 divisors (see below), whose sum is σ = 1700424. Its totient is φ = 1073664.

The previous prime is 1379519. The next prime is 1379549. The reversal of 1379545 is 5459731.

It can be written as a sum of positive squares in 4 ways, for example, as 258064 + 1121481 = 508^2 + 1059^2 .

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 1379545 - 2⁵ = 1379513 is a prime.

It is an Ulam number.

It is a Duffinian number.

1379545 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1379545.

It is not an unprimeable number, because it can be changed into a prime (1379549) 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, 3544 + ... + 3913.

It is an arithmetic number, because the mean of its divisors is an integer number (212553).

2^1379545 is an apocalyptic number.

It is an amenable number.

1379545 is a deficient number, since it is larger than the sum of its proper divisors (320879).

1379545 is an equidigital number, since it uses as much as digits as its factorization.

1379545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7499.

The product of its digits is 18900, while the sum is 34.

The square root of 1379545 is about 1174.5403356207. The cubic root of 1379545 is about 111.3213908649.

The spelling of 1379545 in words is "one million, three hundred seventy-nine thousand, five hundred forty-five".