1579145 has 4 divisors (see below), whose sum is σ = 1894980. Its totient is φ = 1263312.

The previous prime is 1579141. The next prime is 1579163. The reversal of 1579145 is 5419751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5419751 = 1901 ⋅2851.

It can be written as a sum of positive squares in 2 ways, for example, as 226576 + 1352569 = 476^2 + 1163^2 .

It is a cyclic number.

It is not a de Polignac number, because 1579145 - 2² = 1579141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1579141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157910 + ... + 157919.

It is an arithmetic number, because the mean of its divisors is an integer number (473745).

2^1579145 is an apocalyptic number.

It is an amenable number.

1579145 is a deficient number, since it is larger than the sum of its proper divisors (315835).

1579145 is an equidigital number, since it uses as much as digits as its factorization.

1579145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315834.

The product of its digits is 6300, while the sum is 32.

The square root of 1579145 is about 1256.6403622358. The cubic root of 1579145 is about 116.4503155917.

Subtracting 1579145 from its reverse (5419751), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 1579145 in words is "one million, five hundred seventy-nine thousand, one hundred forty-five".