1860545 has 16 divisors (see below), whose sum is σ = 2339280. Its totient is φ = 1419264.

The previous prime is 1860533. The next prime is 1860559. The reversal of 1860545 is 5450681.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 201601 + 1658944 = 449^2 + 1288^2 .

It is a cyclic number.

It is not a de Polignac number, because 1860545 - 2⁸ = 1860289 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16409 + ... + 16521.

It is an arithmetic number, because the mean of its divisors is an integer number (146205).

2^1860545 is an apocalyptic number.

It is an amenable number.

1860545 is a deficient number, since it is larger than the sum of its proper divisors (478735).

1860545 is a wasteful number, since it uses less digits than its factorization.

1860545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1860545 is about 1364.0179617586. The cubic root of 1860545 is about 122.9929050483.

It can be divided in two parts, 18605 and 45, that multiplied together give a square (837225 = 915²).

The spelling of 1860545 in words is "one million, eight hundred sixty thousand, five hundred forty-five".